Anatomy And Physiology Lab Quiz 1

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Stephen Reinbold, PhD (Biological Sciences) |
Biology Instructor
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Stephen Reinbold has a PhD in Biological Sciences and a strong passion for teaching. He taught various subjects including General Biology, Environmental Science, Zoology, Genetics, and Anatomy & Physiology at Metropolitan Community College in Kansas City, Missouri, for nearly thirty years. He focused on scientific methodology and student research projects. Now retired, he works part-time as an editor and engages in online activities.
, PhD (Biological Sciences)
By Bwshipley
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Bwshipley
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1. What is the name of the highlighted organ?

Explanation

The highlighted organ in the image is the heart. The heart is a muscular organ located in the chest that pumps blood throughout the body. It is responsible for circulating oxygenated blood to the body's tissues and returning deoxygenated blood to the lungs to be oxygenated again.

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About This Quiz
Anatomy And Physiology Lab Quiz 1 - Quiz

Play this "Anatomy And Physiology Lab Quiz 1." Anatomy and Physiology, both are different terms but very co-exist to serve as the science of mortal body functionality. The... see morestudy of relationships between various body parts, as well as their structure, is called anatomy, while physiology describes multiple functions of body parts and the body as a whole.
This extended practice quiz has many questions on this topic. So, take it and tell the correct answers.
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2. What is the name of the highlighted organ?

Explanation

The correct answer is Small Intestine. The organ highlighted in the question is the small intestine. It is a long, coiled tube located between the stomach and the large intestine. It is responsible for the digestion and absorption of nutrients from food.

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3. What is the function of the highlighted structures?

Explanation

The highlighted structures in this question are responsible for acting as a control center. They likely play a role in regulating and coordinating various processes within the body. This could include controlling and coordinating the functions of other organs and systems, maintaining homeostasis, and responding to stimuli. The control center is crucial for overall body functioning and ensuring that all the different parts of the body work together harmoniously.

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4. What is the name of the highlighted organ?

Explanation

The correct answer is kidney. The organ highlighted in the question is the kidney. The kidney is a vital organ responsible for filtering waste products and excess water from the blood to form urine. It also helps regulate blood pressure, produce hormones, and maintain electrolyte balance in the body.

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5. What is the name of the highlighted body cavity?

Explanation

The correct answer is Cranial Cavity. The cranial cavity is the body cavity that houses and protects the brain. It is located within the skull and is surrounded by bones, including the frontal, parietal, temporal, and occipital bones. The cranial cavity also contains cerebrospinal fluid, which helps cushion and protect the brain from impact.

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6. What is the name of the highlighted organ?

Explanation

The highlighted organ in the question is the liver.

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7. Which structure is highlighted?

Explanation

The structure highlighted in the question is the epidermis.

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8. What is the name of the highlighted organ?

Explanation

The correct answer is Large Intestine. The organ highlighted in the question is the large intestine, which is responsible for absorbing water and electrolytes from undigested food, forming and storing feces, and eliminating waste from the body.

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9. What is the name of the positively charged subatomic particle?  

Explanation

The positively charged subatomic particle is called a proton. It is found in the nucleus of an atom and has a positive charge. This particle is crucial in determining the atomic number and identity of an element, as each element has a specific number of protons in its nucleus. Neutrons are neutral particles, electrons are negatively charged particles, and elements are substances made up of atoms with a specific number of protons.

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10. Which structure is highlighted?

Explanation

The structure highlighted in the question is the hair.

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11. What is the name of the highlighted organ?

Explanation

The highlighted organ in the given question is the pancreas. The pancreas is a gland located in the abdomen, behind the stomach. It plays a crucial role in digestion and the regulation of blood sugar levels. The pancreas produces digestive enzymes that help break down food in the small intestine, and it also produces insulin and glucagon, hormones that regulate blood sugar levels.

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12. Which structure is highlighted?

Explanation

The highlighted structure in the question is the hypodermis. The hypodermis is the layer of tissue located beneath the dermis, which is the outermost layer of the skin. It is composed of fat cells and connective tissue, and it serves as a cushioning layer, providing insulation and protection to the underlying tissues and organs.

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13. Which direction is indicated in the image?

Explanation

The direction indicated in the image is superior. This means that the object or structure in the image is located above or towards the head or upper part of the body.

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14. What is the major function of the highlighted organ?

Explanation

The major function of the highlighted organ is absorption. Absorption refers to the process by which nutrients, water, and other substances are taken up from the digestive tract into the bloodstream. This organ is responsible for absorbing these essential substances and delivering them to the body's cells for use.

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15. Which type of muscle tissue is found in the walls of hollow organs?

Explanation

Smooth muscle is the correct answer because it is the type of muscle tissue that is found in the walls of hollow organs. Smooth muscle is involuntary and is responsible for the contraction and relaxation of these organs, allowing them to perform their functions, such as the movement of food through the digestive tract or the contraction of blood vessels. Cardiac muscle is found in the heart, skeletal muscle is attached to bones and responsible for voluntary movements, and "organ muscle" is not a recognized type of muscle tissue.

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16. What is the name of the highlighted body plane?

Explanation

The highlighted body plane in the question is called the transverse plane. This plane divides the body into superior and inferior portions, or in simpler terms, it separates the top and bottom halves of the body. The other options, horizontal plane and cross-section, are not commonly used terms to describe this particular body plane. Therefore, the correct answer is the transverse plane.

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17. Which structure is highlighted?

Explanation

The highlighted structure in this question is the Nail Body. The nail body is the visible part of the nail that extends beyond the nail root. It is composed of densely packed keratin cells that give the nail its hardness and strength. The nail body is the part that we typically see and can trim or paint.

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18. What is the name of the body position shown?

Explanation

The correct answer is Prone. Prone position refers to lying face down with the chest and abdomen facing the ground. This position is commonly used in medical settings for procedures or examinations of the back or spine. It allows for better access to the posterior aspect of the body.

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19. Which structure is highlighted?

Explanation

The correct answer is Epidermis. The epidermis is the outermost layer of the skin and acts as a protective barrier against the external environment. It is composed of several layers of cells, including keratinocytes, which produce the protein keratin that gives the epidermis its strength and waterproofing properties. The epidermis also contains melanocytes, which produce the pigment melanin that gives color to the skin, and Langerhans cells, which are involved in the immune response.

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20. What is the collective name for the highlighted organs?

Explanation

The collective name for the highlighted organs is the nasal cavity. The nasal cavity is a hollow space inside the nose that is responsible for filtering, warming, and moistening the air we breathe. It also plays a role in our sense of smell.

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21. Which type of solution contains higher than normal amounts of osmotically active solutes?

Explanation

A hypertonic solution contains higher than normal amounts of osmotically active solutes. This means that the concentration of solutes in the solution is higher compared to the concentration inside the cell. As a result, water molecules move out of the cell through osmosis, causing the cell to shrink or shrivel.

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22. In DNA, which nitrogenous base pairs with adenine?

Explanation

Thymine is the nitrogenous base that pairs with adenine in DNA. Adenine and thymine form a complementary base pair, where adenine always pairs with thymine through two hydrogen bonds. This pairing is essential for DNA replication and the overall structure and stability of the DNA molecule. Thymine is only found in DNA, while uracil replaces thymine in RNA. Cytosine and guanine form another complementary base pair in DNA.

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23. Identify the epithelium.

Explanation

The correct answer is Simple Columnar. Simple columnar epithelium is a single layer of tall, rectangular cells that line the digestive tract and parts of the respiratory tract. These cells are specialized for absorption and secretion, and they often have microvilli on their surface to increase surface area. Simple columnar epithelium can also have goblet cells, which secrete mucus.

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24. An epithelium with a single layer of tall cells would be classified as which type of epithelium?

Explanation

An epithelium with a single layer of tall cells would be classified as simple columnar epithelium. This type of epithelium is characterized by tall, elongated cells that are closely packed together in a single layer. Simple columnar epithelium is typically found lining the digestive tract, where it functions in absorption and secretion.

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25. Which structure is highlighted?

Explanation

The structure highlighted in the question is the Sebaceous Gland. This gland is responsible for producing sebum, an oily substance that lubricates the hair and skin. It is typically found attached to hair follicles and helps to keep the hair and skin moisturized.

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26. Epithelia are stong membranes that function to bind the body together.

Explanation

Epithelia are strong membranes that function to bind the body together. This is because epithelial tissues are tightly packed cells that form a protective barrier on the body's surfaces and line internal organs. They provide structural support, help in absorption and secretion, and play a crucial role in maintaining the integrity and cohesion of the body. Therefore, it is true that epithelia function to bind the body together.

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27. Perimysium covers a muscle fascicle.

Explanation

Perimysium is a connective tissue layer that surrounds and separates muscle fascicles, which are bundles of muscle fibers. It provides support and protection to the fascicles, allowing them to function as a unit within the muscle. Therefore, the statement that perimysium covers a muscle fascicle is true.

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28. Which structure is highlighted?

Explanation

The correct answer is "Nail Bed". The nail bed is the area of skin underneath the nail plate. It is responsible for producing new nail cells and giving the nail its pinkish color. The nail bed is highly vascularized, meaning it has a rich blood supply, which contributes to its pink appearance. It is an important structure for the growth and health of the nail.

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29. What term describes nuclear division?

Explanation

Mitosis is the correct answer because it refers to the process of nuclear division in which a single cell divides into two identical daughter cells. During mitosis, the genetic material in the nucleus is replicated and then distributed equally to the daughter cells. This process is essential for growth, development, and repair of tissues in multicellular organisms. Cytokinesis, on the other hand, is the division of the cytoplasm that follows mitosis, while interphase and cell cycle are broader terms that encompass all the stages of a cell's life cycle, including mitosis.

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30. During which stage of mitosis does cytokinesis end?

Explanation

During telophase, the final stage of mitosis, the nuclear envelope reforms around the separated sister chromatids, forming two new nuclei. At the same time, the cytoplasm divides through a process called cytokinesis, resulting in the formation of two daughter cells. Therefore, cytokinesis ends during telophase.

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31. What is the collective name of the highlighted organs?

Explanation

The collective name of the highlighted organs is "Accessory Digestive Organs". These organs are not part of the main digestive tract, but they play a crucial role in the process of digestion. They include the liver, salivary glands, pancreas, and gallbladder, which all contribute to the breakdown and absorption of food in the digestive system.

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32. Which structures are highlighted?

Explanation

The structures highlighted in the question are Cilia.

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33. Identify the epithelium.

Explanation

Simple cuboidal epithelium is a type of epithelial tissue that consists of a single layer of cube-shaped cells. These cells have a centrally located nucleus and are specialized for secretion and absorption. They are found in various organs and tissues, such as the kidney tubules, glands, and the lining of the respiratory and digestive tracts. This type of epithelium provides protection, secretion, and absorption functions, depending on its location in the body.

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34. What makes up the lateral border of this region?

Explanation

The lateral border of this region is made up of the sternocleidomastoid muscles. These muscles are located on the sides of the neck and are responsible for various movements of the head and neck. They originate from the sternum and clavicle and insert into the mastoid process of the skull. The sternocleidomastoid muscles play an important role in tilting and rotating the head, as well as assisting in breathing and swallowing.

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35. Where does transcription occur?

Explanation

Transcription, the process of synthesizing RNA from a DNA template, occurs in the nucleus of a cell. This is where the DNA is located and serves as a blueprint for the production of RNA molecules. Transcription involves the enzyme RNA polymerase, which binds to the DNA and creates a complementary RNA strand. Once the RNA molecule is formed, it can then be transported out of the nucleus and into the cytoplasm for further processing and translation. Therefore, the correct answer is "In the Nucleus."

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36. What is the name of the highlighted membrane?

Explanation

The correct answer is Parietal Peritoneum. The parietal peritoneum is the membrane that lines the abdominal cavity and covers the organs within it. It provides protection and support to the organs and helps to keep them in place.

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37. What is the name of the highlighted membrane?

Explanation

The highlighted membrane in the question is called the visceral pericardium. This membrane is the innermost layer of the pericardium, which is the protective sac surrounding the heart. The visceral pericardium is also known as the epicardium and directly covers the surface of the heart. It is made up of a thin layer of connective tissue and provides a smooth surface for the heart to move and function effectively within the pericardial sac.

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38. DNA replication occurs during the G2 Phase.

Explanation

DNA replication actually occurs during the S phase of the cell cycle, not the G2 phase. The G2 phase is the period of the cell cycle that follows DNA replication and precedes cell division. During the S phase, the cell's DNA is duplicated, ensuring that each daughter cell receives a complete set of genetic information. Therefore, the correct answer is False.

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39. Which of the following is NOT a category of connective tissue?

Explanation

The correct answer is "Aerobic Connective Tissue" because it does not exist as a category of connective tissue. Connective tissue is classified into four main categories: fluid connective tissue (such as blood and lymph), supporting connective tissue (such as bone and cartilage), connective tissue proper (such as loose and dense connective tissue), and specialized connective tissue (such as adipose tissue and blood vessels). "Aerobic Connective Tissue" is not a recognized category in the study of connective tissue.

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40. Which structure is highlighted?

Explanation

The highlighted structure is the dermis. This is the layer of skin located between the epidermis (the outermost layer) and the subcutaneous layer (the deepest layer). The dermis contains various components such as blood vessels, nerves, hair follicles, and sweat glands. It provides support and nourishment to the skin and helps regulate body temperature. The dermis is also responsible for giving the skin its strength and elasticity.

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41. Identify the epithelium.

Explanation

Telophase is the correct answer because it is the final stage of mitosis. During telophase, the chromosomes have reached opposite poles of the cell and begin to decondense. The nuclear envelope reforms around each set of chromosomes, forming two separate nuclei. The spindle fibers disassemble, and cytokinesis, the division of the cytoplasm, usually begins during this stage. Telophase marks the completion of mitosis and the beginning of the interphase, the resting phase of the cell cycle.

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42. Which type of connective tissue is abundant in walls of arteries, and in the airway?

Explanation

Elastic tissue is abundant in the walls of arteries and in the airway. This type of connective tissue contains elastic fibers that allow it to stretch and recoil, providing flexibility and resilience to these structures. The elastic fibers help arteries expand and contract as blood flows through them, and they also help the airway to expand and contract during breathing. Therefore, elastic tissue is the correct answer for this question.

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43. Adipose Connective Tissue is a type of Dense Connective Tissue.

Explanation

Adipose connective tissue is not a type of dense connective tissue. Dense connective tissue is characterized by tightly packed collagen fibers, while adipose tissue is composed of adipocytes (fat cells) that store energy in the form of fat. Adipose tissue is a specialized type of loose connective tissue that provides insulation, cushioning, and energy storage. Therefore, the statement that adipose connective tissue is a type of dense connective tissue is false.

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44. Identify the epithelium.

Explanation

The correct answer is Stratified Cuboidal. This type of epithelium consists of multiple layers of cube-shaped cells. It is typically found in certain ducts and glands, where it provides protection and secretion.

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45. What is the name of the highlighted region?

Explanation

The correct answer is Anterior Cervical Triangle. The region highlighted in the question is a specific anatomical area in the neck known as the anterior cervical triangle. This triangular area is formed by the borders of certain neck muscles, including the sternocleidomastoid, omohyoid, and midline of the neck. It is an important landmark for identifying structures within the neck, such as the carotid artery, jugular vein, and various lymph nodes.

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46. Where is this epithelial type located?

Explanation

The urinary bladder is lined with a type of epithelial tissue called transitional epithelium. This type of epithelium is found in organs that need to stretch and accommodate changes in volume, such as the urinary bladder. Transitional epithelium is able to change shape and stretch when the bladder is full, allowing it to hold urine. This type of epithelium is not found in the oral cavity, esophagus, trachea, or thick skin.

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47. Reduction is the removal of hydrogen (electrons) from a molecule or atom.

Explanation

The statement is false because reduction is actually the gain of electrons, not the removal. Reduction involves the addition of hydrogen atoms or electrons to a molecule or atom, resulting in a decrease in oxidation state.

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48. Which molecule listed is most likely to cause osmosis in the body?

Explanation

Oxygen is the molecule most likely to cause osmosis in the body. Osmosis is the movement of water molecules across a semi-permeable membrane from an area of lower solute concentration to an area of higher solute concentration. In the body, oxygen is transported through the bloodstream to cells where it is needed for cellular respiration. Since oxygen is a small molecule and can easily cross cell membranes, it can create a concentration gradient that drives the movement of water molecules through osmosis.

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49. Identify the stage of mitosis.

Explanation

Metaphase is the correct answer because it is the stage of mitosis where the chromosomes line up along the equatorial plane of the cell. During metaphase, the spindle fibers attach to the centromeres of the chromosomes and align them in a single file line. This alignment is crucial for the equal distribution of chromosomes to the daughter cells during the subsequent stages of mitosis.

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50. Facilitated diffusion requires energy and can transport molecules against a concentration gradient.

Explanation

Facilitated diffusion is a passive process that does not require energy. It is a type of transport that helps molecules move across a cell membrane from an area of higher concentration to an area of lower concentration. This process is facilitated by specific carrier proteins or channel proteins embedded in the cell membrane. Therefore, facilitated diffusion does not transport molecules against a concentration gradient.

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51. Which of the following is the type of transport  that LDL (Low -Density Lipoprotein) uses to enter a cell?

Explanation

LDL (Low-Density Lipoprotein) is a molecule that carries cholesterol in the bloodstream. It enters cells through a process called Receptor-Mediated Endocytosis. In this process, LDL binds to specific receptors on the cell membrane, triggering the formation of a vesicle that engulfs the LDL molecule and brings it into the cell. This mechanism allows cells to regulate their cholesterol levels by controlling the uptake of LDL. Therefore, the correct answer is Receptor-Mediated Endocytosis.

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52. Identify the stage of mitosis.

Explanation

Telophase is the stage of mitosis where the chromosomes have reached the opposite poles of the cell and are starting to decondense. The nuclear envelope starts to reform around each set of chromosomes, and the nucleolus reappears. Cytokinesis, the division of the cytoplasm, usually begins during this stage. Therefore, telophase is the correct answer as it accurately describes the stage of mitosis where these specific events occur.

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53. Which organelle produces the hydrolytic enzymes contained within the lysosomes?

Explanation

The endoplasmic reticulum is responsible for producing the hydrolytic enzymes found within the lysosomes. These enzymes are necessary for breaking down various molecules and cellular waste materials. The Golgi Apparatus receives proteins from the rough endoplasmic reticulum, modifies them, and packages them into vesicles. These vesicles then fuse with the lysosomes, allowing the hydrolytic enzymes to be released and perform their function. The mitochondrion is responsible for producing energy in the form of ATP, while the rough endoplasmic reticulum is involved in protein synthesis. The lysosome itself is an organelle that contains the hydrolytic enzymes.

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54. Identify the stage of mitosis.

Explanation

Anaphase is the correct answer because it is the stage of mitosis where the sister chromatids separate and move towards opposite poles of the cell. During this stage, the microtubules of the spindle apparatus pull the chromatids apart, ensuring that each new cell will receive a complete set of chromosomes. Anaphase is characterized by the visible movement of the chromatids towards the poles, and it follows the metaphase stage where the chromatids are aligned at the center of the cell.

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55. Identify the stage of mitosis.

Explanation

Anaphase is the stage of mitosis where the sister chromatids separate and move towards opposite poles of the cell. This is achieved by the spindle fibers pulling the chromosomes apart. During anaphase, the cell elongates as the spindle fibers lengthen, and the chromosomes are pulled towards the poles. This stage is characterized by the visible separation of the chromatids and the movement towards the poles, making it the correct answer.

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56. Identify the stage of mitosis.

Explanation

Prophase is the correct answer because it is the first stage of mitosis. During prophase, the chromatin condenses into visible chromosomes, the nuclear membrane breaks down, and the centrioles move to opposite poles of the cell. Additionally, the spindle fibers begin to form and attach to the chromosomes. This stage prepares the cell for the subsequent stages of mitosis.

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57. Identify the stage of mitosis.

Explanation

Anaphase is the stage of mitosis where the sister chromatids separate and move towards opposite poles of the cell. This is achieved by the spindle fibers pulling the chromosomes apart. During anaphase, the cell elongates as the spindle fibers lengthen, and the chromosomes are pulled towards the poles. This stage is characterized by the visible separation of the chromatids and the movement towards the poles, making it the correct answer.

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58. What type of cell is highlighted in this image?

Explanation

The correct answer is Neuroglia. Neuroglia is a type of cell that provides support and protection to neurons in the nervous system. In the image, the highlighted cell appears to have a star-like shape and is located among other neurons, suggesting it is a neuroglia cell. Neuroglia cells play a crucial role in maintaining the structure and function of the nervous system.

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59. One function of muscle tissue is to provide heat production.

Explanation

Muscle tissue is primarily responsible for generating movement and force in the body, not heat production. While muscle contractions do generate some heat as a byproduct, the main function of muscle tissue is not to provide heat production.

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60. What is the name of the major blood sugar-releasing hormone secreted by the highlighted organ?

Explanation

Glucagon is the major blood sugar-increasing hormone released by the highlighted organ. It works by stimulating the liver to convert stored glycogen into glucose, which is then released into the bloodstream. This helps to increase blood sugar levels when they are too low. Conversely, insulin is responsible for lowering blood sugar levels by allowing cells to take in glucose from the bloodstream. Glucocorticoids and cortisol are not directly involved in blood sugar regulation.

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61. Identify the epithelium.

Explanation

Transitional epithelium is a type of stratified epithelium that is found in organs like the urinary bladder. It is named "transitional" because it can change shape and stretch to accommodate changes in volume. This type of epithelium is characterized by multiple layers of cells, with the surface cells appearing dome-shaped when the organ is relaxed and flattened when the organ is stretched. Transitional epithelium is designed to protect the underlying tissues from the toxic effects of urine and to allow for distention without tearing.

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62. Identify the stage of mitosis.

Explanation

Telophase is the correct answer because it is the final stage of mitosis. During telophase, the chromosomes have reached opposite poles of the cell and begin to decondense. The nuclear envelope reforms around each set of chromosomes, forming two separate nuclei. The spindle fibers disassemble, and cytokinesis, the division of the cytoplasm, usually begins during this stage. Telophase marks the completion of mitosis and the beginning of the interphase, the resting phase of the cell cycle.

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63. Which of the following in NOT a feature of epithelia?

Explanation

Epithelia are tissues that cover the surfaces of organs and line body cavities. They have several features, including being avascular (lacking blood vessels), having a basement membrane (a thin layer that separates the epithelium from underlying connective tissue), and containing abundant extracellular material. However, specialized intercellular junctions are not a feature of epithelia. These junctions are found in other types of tissues, such as muscle and nerve tissues, and serve to connect cells together and allow for communication between them. Epithelial cells are typically connected by simpler junctions, such as tight junctions and desmosomes.

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64. Identify the epithelium.

Explanation

Simple squamous epithelium is a single layer of flat cells that allows for efficient diffusion and filtration. It is found in areas where rapid exchange of substances is necessary, such as the lining of blood vessels (endothelium) and the air sacs of the lungs (alveoli). This type of epithelium is thin and delicate, allowing for easy passage of gases and small molecules. It is not specialized for protection or secretion, unlike other types of epithelium.

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65. Identify the stage of mitosis.

Explanation

Metaphase is the correct answer because it is the stage of mitosis where the chromosomes line up along the equator of the cell. During metaphase, the spindle fibers attach to the centromeres of the chromosomes, aligning them in a single file line. This alignment is crucial for the equal distribution of chromosomes to the daughter cells during the subsequent stages of mitosis.

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66. Identify the stage of mitosis.

Explanation

Prophase is the first stage of mitosis. During prophase, the nuclear envelope breaks down, and the chromosomes condense and become visible. The spindle fibers also begin to form and attach to the centromeres of the chromosomes. This stage is characterized by the preparation of the cell for division, as the chromosomes become organized and the spindle apparatus is established.

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67. Where are chondrocytes and osteocytes located?

Explanation

Chondrocytes and osteocytes are specialized cells found in the body's skeletal system. Chondrocytes are located in cartilage, which is a flexible connective tissue that provides support and cushioning in joints. Osteocytes, on the other hand, are located in bone, where they play a vital role in maintaining bone structure and function. Therefore, the correct answer is "In Cartilage."

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68. Which structure is highlighted?

Explanation

The hair papilla is the structure highlighted in the question. It is a small, protruding structure at the base of the hair follicle. It is responsible for supplying nutrients and oxygen to the hair bulb, which is the living part of the hair. The hair papilla also contains blood vessels that help in hair growth.

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69. During which phase do the sister chromatids begin to separate and start moving toward opposite poles of the cell?

Explanation

During Anaphase, which is a phase of cell division, sister chromatids, replicated copies of each chromosome, separate and move towards opposite poles of the cell. This separation is orchestrated by spindle fibers that attach to the centromeres of the sister chromatids and pull them apart. As a result, two distinct sets of chromosomes are formed at opposite ends of the cell, ensuring that each daughter cell receives the correct number of chromosomes during cell division. Anaphase plays a crucial role in maintaining genetic stability and ensuring the accurate distribution of genetic material to the daughter cells.

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70. Which structure is highlighted?

Explanation

The structure highlighted in this question is the eponychium. The eponychium is the thickened layer of skin that covers the base of the nail. It is different from the cuticle in that the cells are alive. In the cuticle, the cells are dead. It protects the nail matrix, which is responsible for nail growth, from infections and damage.

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Stephen Reinbold |PhD (Biological Sciences) |
Biology Instructor
Stephen Reinbold has a PhD in Biological Sciences and a strong passion for teaching. He taught various subjects including General Biology, Environmental Science, Zoology, Genetics, and Anatomy & Physiology at Metropolitan Community College in Kansas City, Missouri, for nearly thirty years. He focused on scientific methodology and student research projects. Now retired, he works part-time as an editor and engages in online activities.

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What is the name of the highlighted organ?
What is the name of the highlighted organ?
What is the function of the highlighted structures?
What is the name of the highlighted organ?
What is the name of the highlighted body cavity?
What is the name of the highlighted organ?
Which structure is highlighted?
What is the name of the highlighted organ?
What is the name of the positively charged subatomic particle?  
Which structure is highlighted?
What is the name of the highlighted organ?
Which structure is highlighted?
Which direction is indicated in the image?
What is the major function of the highlighted organ?
Which type of muscle tissue is found in the walls of hollow organs?
What is the name of the highlighted body plane?
Which structure is highlighted?
What is the name of the body position shown?
Which structure is highlighted?
What is the collective name for the highlighted organs?
Which type of solution contains higher than normal amounts of...
In DNA, which nitrogenous base pairs with adenine?
Identify the epithelium.
An epithelium with a single layer of tall cells would be classified as...
Which structure is highlighted?
Epithelia are stong membranes that function to bind the body together.
Perimysium covers a muscle fascicle.
Which structure is highlighted?
What term describes nuclear division?
During which stage of mitosis does cytokinesis end?
What is the collective name of the highlighted organs?
Which structures are highlighted?
Identify the epithelium.
What makes up the lateral border of this region?
Where does transcription occur?
What is the name of the highlighted membrane?
What is the name of the highlighted membrane?
DNA replication occurs during the G2 Phase.
Which of the following is NOT a category of connective tissue?
Which structure is highlighted?
Identify the epithelium.
Which type of connective tissue is abundant in walls of arteries, and...
Adipose Connective Tissue is a type of Dense Connective Tissue.
Identify the epithelium.
What is the name of the highlighted region?
Where is this epithelial type located?
Reduction is the removal of hydrogen (electrons) from a molecule or...
Which molecule listed is most likely to cause osmosis in the body?
Identify the stage of mitosis.
Facilitated diffusion requires energy and can transport molecules...
Which of the following is the type of transport  that LDL (Low...
Identify the stage of mitosis.
Which organelle produces the hydrolytic enzymes contained within the...
Identify the stage of mitosis.
Identify the stage of mitosis.
Identify the stage of mitosis.
Identify the stage of mitosis.
What type of cell is highlighted in this image?
One function of muscle tissue is to provide heat production.
What is the name of the major blood sugar-releasing hormone secreted...
Identify the epithelium.
Identify the stage of mitosis.
Which of the following in NOT a feature of epithelia?
Identify the epithelium.
Identify the stage of mitosis.
Identify the stage of mitosis.
Where are chondrocytes and osteocytes located?
Which structure is highlighted?
During which phase do the sister chromatids begin to separate and...
Which structure is highlighted?
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