MCQs Types Quiz On Anatomy

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MCQs Types Quiz On Anatomy - Quiz


There are multiple choice and true or false questions about basic human anatomy and the integumentary system. There are also questions about tissues, body cavities, membranes and intercellular atachments.


Questions and Answers
  • 1. 

    The axial skeleton includes:

    • A.

      Limbs/vertebral column

    • B.

      Skull

    • C.

      Phalanges

    • D.

      Skull/torso

    Correct Answer
    D. Skull/torso
    Explanation
    The axial skeleton includes the skull and the torso. The skull is the structure that encloses and protects the brain, while the torso includes the vertebrae of the vertebral column, the ribs, and the sternum. These structures form the central axis of the body and provide support and protection for vital organs such as the brain, heart, and lungs. The limbs and phalanges are part of the appendicular skeleton, which is responsible for movement and manipulation.

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  • 2. 

    Appendicular skeleton includes all of the following except:

    • A.

      Thorax

    • B.

      Pectoral girdle

    • C.

      Upper/lower limbs

    • D.

      Pelvic girdle

    Correct Answer
    A. Thorax
    Explanation
    The appendicular skeleton refers to the bones of the limbs and the girdles that attach them to the axial skeleton. The thorax, on the other hand, is part of the axial skeleton and consists of the ribs and sternum. Therefore, the thorax is not included in the appendicular skeleton.

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  • 3. 

    Abduction means:

    • A.

      Moving towards the midline

    • B.

      Moving away from the midline

    • C.

      Taken away by aliens

    • D.

      Rotating palms up

    Correct Answer
    B. Moving away from the midline
    Explanation
    Abduction refers to the movement of a body part away from the midline of the body. This movement occurs in the horizontal plane, away from the center of the body. It is the opposite of adduction, which is the movement towards the midline. Abduction can occur in various joints of the body, such as the shoulder, hip, or fingers, and it allows for increased range of motion and flexibility.

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  • 4. 

    What transports blood away from the heart?

    • A.

      Blood vessels

    • B.

      Arteries

    • C.

      Veins

    • D.

      Cardiovascular nerves

    Correct Answer
    B. Arteries
    Explanation
    Arteries transport blood away from the heart. They are thick-walled blood vessels that carry oxygenated blood from the heart to various parts of the body. Arteries have a high pressure due to the pumping action of the heart, which helps in pushing the blood forward. They branch out into smaller vessels called arterioles, which further divide into capillaries, allowing for the exchange of oxygen and nutrients with the body's tissues. Overall, arteries play a crucial role in maintaining blood circulation throughout the body.

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  • 5. 

    The lymphatic system includes all of the following except:

    • A.

      Spleen

    • B.

      Capillaries

    • C.

      Thymus

    • D.

      Lymph nodes/vessels

    Correct Answer
    B. Capillaries
    Explanation
    The lymphatic system is responsible for maintaining fluid balance in the body and helps in the defense against infections. It includes various components such as the spleen, thymus, lymph nodes/vessels, and capillaries. However, capillaries are not a part of the lymphatic system. Capillaries are tiny blood vessels that connect arteries and veins and are involved in the exchange of nutrients and waste products between the blood and body tissues.

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  • 6. 

    Gonads, pancreas, thymus, thyroid, and pituitary/pineal/adrenal glands belong to the

    • A.

      Lymphatic system

    • B.

      Digestive system

    • C.

      Reproductive system

    • D.

      Endocrine system

    Correct Answer
    D. Endocrine system
    Explanation
    The correct answer is the endocrine system. The endocrine system is responsible for producing and secreting hormones that regulate various bodily functions. The gonads (ovaries and testes) produce sex hormones, the pancreas produces insulin and glucagon to regulate blood sugar levels, the thymus produces hormones that help with immune function, the thyroid produces hormones that regulate metabolism, and the pituitary, pineal, and adrenal glands produce various hormones that regulate growth, reproduction, sleep, and stress response.

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  • 7. 

    The cranial and spinal (vertebral) cavity are located in the _________ cavity:

    • A.

      Ventral (anterior)

    • B.

      Dorsal (posterior)

    • C.

      Abdominopelvic

    • D.

      Retroperitoneal

    Correct Answer
    B. Dorsal (posterior)
    Explanation
    The cranial and spinal (vertebral) cavity are located in the dorsal (posterior) cavity. The term "dorsal" refers to the back side of the body, and these cavities are positioned on the posterior (back) side. The cranial cavity houses the brain, while the spinal (vertebral) cavity contains the spinal cord. Both of these cavities are located on the dorsal side of the body.

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  • 8. 

    The ventral (anterior) cavity includes all of the following except:

    • A.

      Medialstinum region

    • B.

      Thoracic cavity

    • C.

      Pleural cavities

    • D.

      Peritoneal cavity

    Correct Answer
    D. Peritoneal cavity
    Explanation
    The ventral (anterior) cavity includes the thoracic cavity, pleural cavities, and the mediastinum region. The peritoneal cavity, on the other hand, is a part of the abdominal cavity. Therefore, it is not included in the ventral cavity.

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  • 9. 

    The thoracic cavity does not include the:

    • A.

      Peritoneal cavity

    • B.

      Pleural cavity

    • C.

      Paricardial cavity

    • D.

      Mediastinum region

    Correct Answer
    A. Peritoneal cavity
    Explanation
    The thoracic cavity is a chamber within the chest that houses the lungs, heart, and other structures. It is surrounded by the ribcage and separated from the abdominal cavity by the diaphragm. The peritoneal cavity, on the other hand, is located within the abdominal cavity and contains the organs of the digestive system, such as the stomach, liver, and intestines. Therefore, the peritoneal cavity is not part of the thoracic cavity.

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  • 10. 

    The inferior portion of the abdominopelvic cavity is:

    • A.

      Abdominal cavity

    • B.

      Pelvic cavity

    • C.

      Peritoneal cavity

    • D.

      Pericardial cavity

    Correct Answer
    B. Pelvic cavity
    Explanation
    The correct answer is the pelvic cavity. The abdominopelvic cavity is divided into two portions, the abdominal cavity and the pelvic cavity. The pelvic cavity is located inferiorly and is surrounded by the bones of the pelvis. It contains various organs such as the bladder, reproductive organs, and parts of the digestive system. The peritoneal cavity is a potential space within the abdominopelvic cavity that is lined by the peritoneum, a membrane that covers the organs. The pericardial cavity, on the other hand, is located within the thoracic cavity and surrounds the heart.

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  • 11. 

    Retroperiteal space does not include:

    • A.

      Stomach

    • B.

      Spleen

    • C.

      Pancreas

    • D.

      Part of the large intestine

    Correct Answer
    A. Stomach
    Explanation
    The retroperitoneal space is located behind the peritoneum, which is the membrane that lines the abdominal cavity. It contains various organs, such as the kidneys, adrenal glands, and parts of the digestive system. However, the stomach is not located in the retroperitoneal space. It is situated in the upper part of the abdominal cavity, just below the diaphragm. Therefore, the stomach is not included in the retroperitoneal space.

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  • 12. 

    Pleura, pericardium, and peritoneum membranes have both parital and _________ membranes:

    • A.

      Visceral

    • B.

      Lining

    • C.

      Adhering

    • D.

      Cavity

    Correct Answer
    A. Visceral
    Explanation
    The pleura, pericardium, and peritoneum membranes have both parietal and visceral membranes. The parietal membrane lines the outer surface of the body cavity, while the visceral membrane covers the organs within the cavity. Therefore, the correct answer is "visceral," as it completes the sentence by indicating that these membranes have both parietal and visceral components.

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  • 13. 

    _______________, _______________, ______________ are all intercellular attachments.

    Correct Answer
    tight junction
    communicating junction
    anchoring junction
    gap junction
    desmosome
    Explanation
    Tight junctions, communicating junctions, anchoring junctions, gap junctions, and desmosomes are all types of intercellular attachments. These attachments play crucial roles in maintaining the structural integrity and functional coordination of cells within tissues. Tight junctions form a barrier between cells, preventing the leakage of molecules between them. Communicating junctions, also known as gap junctions, allow direct communication and exchange of small molecules between adjacent cells. Anchoring junctions provide mechanical support and stability by anchoring cells to each other or to the extracellular matrix. Desmosomes are specialized junctions that provide strong adhesion between cells, especially in tissues subjected to mechanical stress.

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  • 14. 

    This intercellular attachment interlocks proteins, blocks passage of moleclues, and is found in the digestive system:

    • A.

      Tight junction

    • B.

      Communicating junction

    • C.

      Anchoring junction

    • D.

      Desmosome

    Correct Answer
    A. Tight junction
    Explanation
    A tight junction is a type of intercellular attachment that forms a barrier between cells, preventing the passage of molecules. It consists of proteins that interlock with each other, creating a tight seal. Tight junctions are commonly found in the digestive system, where they help to maintain the integrity and function of the intestinal lining by preventing the leakage of digestive enzymes and bacteria into surrounding tissues.

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  • 15. 

    ___________________ is the intercellular attachment that embeds proteins forming channels between cells, allowing certain molecules to pass through, and is composed of cardiac muscle tissue.

    Correct Answer
    communicating junction
    gap junction
    Explanation
    Gap junctions are intercellular attachments that embed proteins forming channels between cells, allowing certain molecules to pass through. They are composed of cardiac muscle tissue. Gap junctions play a crucial role in coordinating the contraction of cardiac muscle cells, ensuring efficient and synchronized pumping of the heart. These junctions allow for the rapid transmission of electrical signals and the exchange of ions and small molecules between adjacent cells, facilitating cell-to-cell communication and maintaining the integrity of the cardiac tissue.

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  • 16. 

    The anchoring junction, or desmosome, has proteins sown to the cell membrane, a continuous sheet of cells, resists stretching and twisting, and is found in the:

    • A.

      Heart

    • B.

      Skin

    • C.

      Liver

    • D.

      Brain

    Correct Answer
    B. Skin
    Explanation
    Desmosomes are anchoring junctions found in the skin. These junctions play a crucial role in maintaining the structural integrity of the skin by connecting adjacent cells together. They consist of proteins that are attached to the cell membrane and form a continuous sheet of cells, which helps resist stretching and twisting. Therefore, the correct answer is skin.

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  • 17. 

    ______________, located at the lateral surface of the epitheial tissue, aids in absorbtion.

    • A.

      Endothelium

    • B.

      Microvilli

    • C.

      Mesothelium

    • D.

      Sterocilia

    Correct Answer
    B. Microvilli
    Explanation
    Microvilli are small, finger-like projections located on the lateral surface of epithelial tissue. These structures increase the surface area of the tissue, allowing for more efficient absorption of nutrients and other substances. Therefore, microvilli aid in absorption. Endothelium refers to the inner lining of blood vessels and lymphatic vessels, mesothelium refers to the lining of body cavities, and stereocilia are long, hair-like projections found in the inner ear and male reproductive tract.

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  • 18. 

    Simple squamous epithelium is located in:

    • A.

      Kidney tubules, ducts and secretory portions of small glands, and ovary surfaces

    • B.

      Large glands, the treachea, and most of the respiratory tract

    • C.

      Most of the digestive tract, uterine tubes, and some regions of the uterus

    • D.

      Lining of heart, blood vessels, and lungs; lining of ventral cavity

    Correct Answer
    D. Lining of heart, blood vessels, and lungs; lining of ventral cavity
    Explanation
    The correct answer is lining of heart, blood vessels, and lungs; lining of ventral cavity. Simple squamous epithelium is a single layer of flat cells that allows for easy diffusion of substances. This type of epithelium is found in the lining of the heart, blood vessels, and lungs, where it facilitates the exchange of gases and nutrients. It is also found in the lining of the ventral cavity, which includes the abdominal and thoracic cavities, where it provides a smooth surface for organs to move against each other.

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  • 19. 

    What type of epithelium is found in the largest ducts of sweat glands, mammary glands, and salivary glands?

    • A.

      Transitional epithelium

    • B.

      Stratified columnar epithelium

    • C.

      Simple cuboidal epithelium

    • D.

      Stratified cubodial epithelium

    Correct Answer
    D. Stratified cubodial epithelium
    Explanation
    The largest ducts of sweat glands, mammary glands, and salivary glands are lined with stratified cuboidal epithelium. This type of epithelium consists of multiple layers of cube-shaped cells. It provides protection and support to the ducts, as well as allows for secretion and absorption of substances. Transitional epithelium is found in organs that need to stretch, such as the urinary bladder. Stratified columnar epithelium is found in parts of the male urethra and conjunctiva. Simple cuboidal epithelium is found in areas where secretion and absorption occur, such as the kidney tubules.

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  • 20. 

    Sebaceous glands are found in the scalp and axillary regions of the body. They use the ________ mode of secretion.

    • A.

      Merocrine

    • B.

      Holocrine

    • C.

      Apocrine

    • D.

      Exocytosis

    Correct Answer
    B. Holocrine
    Explanation
    Holocrine is the correct answer because it refers to a mode of secretion where the entire secretory cell is released along with the secretory product. In the case of sebaceous glands, the cells accumulate lipids until they burst and release their contents into the hair follicle, which is then transported to the surface of the skin. This mode of secretion is different from merocrine, where the secretory product is released through exocytosis, and from apocrine, where the secretory product is released along with a portion of the cell.

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  • 21. 

    Salivary and eccrine sweat glands releases their product without damaging the gland by the most common mode of secretion,  ___________.

    • A.

      Apocrine

    • B.

      Endocrine

    • C.

      Holocrine

    • D.

      Merocrine

    Correct Answer
    D. Merocrine
    Explanation
    Merocrine secretion is the most common mode of secretion for salivary and eccrine sweat glands. In this type of secretion, the gland releases its product through exocytosis, meaning the product is packaged into vesicles and then released from the cell without damaging the gland. This allows for continuous and controlled secretion without harming the glandular cells. Therefore, merocrine secretion is the correct answer for this question.

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  • 22. 

    Specialized cells and the matrix are components of what tissue?

    • A.

      Connective tissue

    • B.

      Muscle tissue

    • C.

      Epithelium tissue

    • D.

      Neural tissue

    Correct Answer
    A. Connective tissue
    Explanation
    Specialized cells and the matrix are key components of connective tissue. Connective tissue is a type of tissue that connects, supports, and protects different structures in the body. It consists of various specialized cells, such as fibroblasts, adipocytes, and macrophages, which are responsible for producing and maintaining the extracellular matrix. The matrix, composed of proteins and fibers like collagen and elastin, provides strength and flexibility to the tissue. Connective tissue can be found throughout the body, including tendons, ligaments, cartilage, bone, and blood.

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  • 23. 

    Protein fibers and ground substance make up:

    • A.

      Collagen

    • B.

      Mesenchymal tissue

    • C.

      Matrix

    • D.

      Lacunae

    Correct Answer
    C. Matrix
    Explanation
    The correct answer is "matrix" because protein fibers and ground substance together form the matrix. The matrix is a non-living component of connective tissue that provides structural support and serves as a medium for cells and other substances. It is composed of collagen, elastin, and other proteins, as well as various molecules like glycosaminoglycans and proteoglycans. The matrix plays a crucial role in maintaining tissue integrity and function.

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  • 24. 

    _____________, which can be either fixed or free, are known as the "clean-up" cells.

    • A.

      Mast cell

    • B.

      Macrophage

    • C.

      Lymphocyte

    • D.

      Adipocyte

    Correct Answer
    B. Macrophage
    Explanation
    Macrophages are a type of white blood cell that play a crucial role in the immune response by engulfing and destroying pathogens, dead cells, and debris. They are known as "clean-up" cells because they are responsible for removing and cleaning up these unwanted substances in the body. Macrophages can be either fixed, meaning they are stationary in tissues, or free, meaning they can move freely throughout the body.

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  • 25. 

    Loose connective tissue does not have a lot of collagen fibers and is in the connective tissue proper classification. It includes __________ tissue, ___________ tissue, and ______________ tissue.

    Correct Answer
    reticular connective, adipose, areolar connective
    Explanation
    Loose connective tissue is a type of connective tissue that has a lower amount of collagen fibers compared to other connective tissues. It falls under the classification of connective tissue proper. It includes three types of tissues: reticular connective tissue, which provides structural support; adipose tissue, which stores fat and acts as an insulator; and areolar connective tissue, which surrounds and cushions organs and supports blood vessels and nerves.

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  • 26. 

    _________________ is a loose connective tissue that provides framework for organs and has a lot of fibers.

    • A.

      Adipose tissue

    • B.

      Areolar connective tissue

    • C.

      Elastic connective tissue

    • D.

      Reticular connective tissue

    Correct Answer
    D. Reticular connective tissue
    Explanation
    Reticular connective tissue is a type of loose connective tissue that provides a framework for organs and contains a large number of fibers. It is made up of reticular cells and reticular fibers, which form a network-like structure. This tissue is found in various organs such as the liver, spleen, lymph nodes, and bone marrow, where it supports and anchors these organs while allowing for the movement of cells and substances.

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  • 27. 

    The most common kind of fiber that is tough and stretchy and holds cells cells together is:

    • A.

      Collagen

    • B.

      Elastic

    • C.

      Recticular

    • D.

      Dense irregular

    Correct Answer
    A. Collagen
    Explanation
    Collagen is the correct answer because it is a type of protein found in connective tissues, such as tendons, ligaments, and skin. It is known for its strength and flexibility, making it tough and stretchy. Collagen also plays a crucial role in holding cells together, providing structural support and integrity to various tissues in the body.

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  • 28. 

    What is the connective tissue found in the dermis?

    • A.

      Elastic

    • B.

      Dense regular

    • C.

      Dense irregular

    • D.

      Areolar

    Correct Answer
    C. Dense irregular
    Explanation
    Dense irregular connective tissue is the correct answer because it is the type of connective tissue that is found in the dermis. Dense irregular connective tissue is composed of collagen fibers that are arranged in a random and irregular pattern, providing strength and support to the skin. It is also flexible and allows the skin to withstand stretching and bending movements.

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  • 29. 

    What type of connective tissue is found in tendons and ligaments?

    • A.

      Dense regular

    • B.

      Dense irregular

    • C.

      Reticular

    • D.

      Elastic

    Correct Answer
    A. Dense regular
    Explanation
    Tendons and ligaments are both types of connective tissue that connect muscles to bones and bones to other bones, providing stability and support to the body. Dense regular connective tissue is the correct answer because it is characterized by tightly packed collagen fibers that are arranged in parallel, giving it strength and resistance to stretching in one direction. This arrangement is ideal for tendons and ligaments, which need to withstand tension and force along a specific axis. Dense irregular connective tissue, reticular connective tissue, and elastic connective tissue have different structural arrangements and are not as suitable for the specific functions of tendons and ligaments.

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  • 30. 

    The most common type of cartilage is found in the trachea and larynx. It is:

    • A.

      Hyaline

    • B.

      Fibrocartilage

    • C.

      Elastic cartilage

    • D.

      Bone

    Correct Answer
    A. Hyaline
    Explanation
    Hyaline cartilage is the most common type of cartilage found in the trachea and larynx. It is a translucent, flexible, and smooth type of cartilage that provides support and cushioning to the structures it is present in. Its smooth surface allows for easy movement and flexibility, making it ideal for structures like the trachea and larynx that require both support and flexibility for functions such as breathing and speaking.

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  • 31. 

    Hyaline cartilage, which is very high in fiber and can withstand a lot of pressure, can be found in vertebrae disks and the symphysis pubis.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The given statement is false. Hyaline cartilage is not high in fiber and cannot withstand a lot of pressure. It is a type of cartilage that is found in areas requiring support and flexibility, such as the nose, trachea, and the ends of long bones. It is not found in the vertebrae disks or the symphysis pubis.

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  • 32. 

    Contractile proteins are found in __________ tissue, which is highly contractile.

    • A.

      Skeletal

    • B.

      Connective

    • C.

      Muscle

    • D.

      Nerve

    Correct Answer
    C. Muscle
    Explanation
    Contractile proteins are responsible for the contraction and relaxation of muscle tissue. These proteins, such as actin and myosin, generate the force necessary for muscle movement. Skeletal, connective, and nerve tissues do not possess the same level of contractility as muscle tissue. Therefore, the correct answer is muscle.

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  • 33. 

    What type of tissue is multinucleated?

    • A.

      Smooth muscle tissue

    • B.

      Skeletal muscle tissue

    • C.

      Cardiac muscle tissue

    • D.

      Dense irregular connective tissue

    Correct Answer
    B. Skeletal muscle tissue
    Explanation
    Skeletal muscle tissue is multinucleated because it is composed of long, cylindrical cells called muscle fibers. These muscle fibers contain multiple nuclei, which are necessary for the muscle to efficiently contract and generate force. The multinucleated nature of skeletal muscle tissue allows for coordinated muscle contractions and enables the tissue to withstand the stress and strain associated with movement and physical activity.

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  • 34. 

    The axon in the nueron:

    • A.

      Carries impulses away from the soma.

    • B.

      Carries impulses to the soma.

    • C.

      Is the potential action in cells.

    • D.

      Conducts impulses.

    Correct Answer
    A. Carries impulses away from the soma.
    Explanation
    The axon in a neuron is responsible for carrying impulses away from the soma, which is the cell body of the neuron. This is because the axon is a long, slender projection of the neuron that transmits electrical signals or impulses to other neurons, muscles, or glands. The impulses travel along the axon and are transmitted to other cells, allowing for communication and coordination within the nervous system. Therefore, the correct answer is that the axon carries impulses away from the soma.

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  • 35. 

    Muscle tissue and epithelial tissue are found in membranes.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Muscle tissue and epithelial tissue are not found in membranes. Muscle tissue is found in organs such as the heart and skeletal muscles, while epithelial tissue lines the surfaces of organs and body cavities. Membranes, on the other hand, are thin layers of tissue that cover and protect various structures in the body, but they do not contain muscle or epithelial tissue. Therefore, the correct answer is false.

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  • 36. 

    What membrane is found in joints?

    • A.

      Mucous membrane

    • B.

      Serous membrane

    • C.

      Cutaneous membrane

    • D.

      Synovial membrane

    Correct Answer
    D. Synovial membrane
    Explanation
    The synovial membrane is the correct answer because it is the membrane found in joints. It lines the joint capsules and produces synovial fluid, which helps lubricate and cushion the joints during movement. The other options, mucous membrane, serous membrane, and cutaneous membrane, are found in other parts of the body and not specifically in joints.

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  • 37. 

    What is not a function in the integumentary system?

    • A.

      Heat regulation

    • B.

      Movement

    • C.

      Abundant sensation

    • D.

      Metabolic function

    Correct Answer
    B. Movement
    Explanation
    Movement is not a function of the integumentary system. The integumentary system primarily consists of the skin, hair, nails, and glands, and its main functions include protection, sensation, temperature regulation, and vitamin D synthesis. While movement is an important function of the muscular system, it is not directly related to the integumentary system.

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  • 38. 

    ____________ are in areas that lack hair and are highly sensitive to touch.

    • A.

      Keratinocytes

    • B.

      Melanocytes

    • C.

      Langerhans

    • D.

      Merkle cells

    Correct Answer
    D. Merkle cells
    Explanation
    Merkle cells are found in areas that lack hair and are highly sensitive to touch. These cells are located in the skin's epidermis and play a crucial role in transmitting sensory information to the brain. They have specialized structures called Merkel discs that allow them to detect pressure and texture, making them important for our sense of touch. Unlike keratinocytes, melanocytes, and Langerhans cells, which have different functions in the skin, merkle cells specifically contribute to touch sensitivity in hairless areas.

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  • 39. 

    List the five layers of the epidermis in deepest to most superficial order: _____________ ________ ___________________ __________

    Correct Answer
    stratum basale
    stratum spinosum
    stratum granulosum
    stratum lucidum
    stratum cornenum
    Explanation
    The correct answer is in the correct order from deepest to most superficial. The stratum basale is the deepest layer, followed by the stratum spinosum, then the stratum granulosum, stratum lucidum, and finally the stratum corneum.

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  • 40. 

    The epidermis layer that is found in palma and plantar surfaces is:

    • A.

      Stratum lucidum

    • B.

      Stratum basale

    • C.

      Stratum spinosum

    • D.

      Stratum corneum

    Correct Answer
    A. Stratum lucidum
    Explanation
    The correct answer is stratum lucidum. The stratum lucidum is a layer of the epidermis that is found in the palms and soles of the feet. It is a clear, translucent layer that is composed of dead keratinocytes. This layer helps to provide additional protection to these areas of the body, which experience more friction and pressure.

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  • 41. 

    What is not responsible for skin color?

    • A.

      Vessels

    • B.

      Capilaries

    • C.

      Melanon

    • D.

      Meissners corpuscles

    Correct Answer
    D. Meissners corpuscles
    Explanation
    Meissner's corpuscles are not responsible for skin color. Meissner's corpuscles are sensory receptors located in the skin that are responsible for detecting light touch and vibration. They are not involved in the production or regulation of melanin, the pigment that determines skin color. Melanin is produced by melanocytes in the skin and is responsible for protecting the skin from the harmful effects of the sun's ultraviolet (UV) rays. Vessels and capillaries are involved in the circulation of blood and do not directly affect skin color.

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  • 42. 

    Name the corpuscles in the dermis in deepest to most superficial order: ____________ _________ ________________

    Correct Answer
    meissners corpuscles
    ruffini corpuscles
    pacinian corpuscles
    Explanation
    The correct order of the corpuscles in the dermis from deepest to most superficial is Meissner's corpuscles, Ruffini corpuscles, and Pacinian corpuscles. Meissner's corpuscles are located in the upper dermis and are responsible for detecting light touch and vibration. Ruffini corpuscles are found in the deeper dermis and are involved in detecting skin stretch and pressure. Pacinian corpuscles are the most superficial and are located in the subcutaneous tissue, responsible for sensing deep pressure and vibration.

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  • 43. 

    Eccrine sweat glands and apocrine sweat glands use what mode of secretion?

    • A.

      Merocrine

    • B.

      Holocrine

    • C.

      Endocrine

    • D.

      Apocrine

    Correct Answer
    A. Merocrine
    Explanation
    Eccrine sweat glands and apocrine sweat glands both use the mode of secretion called merocrine. Merocrine secretion involves the release of secretory products through exocytosis, where the secretory vesicles fuse with the cell membrane and release their contents into the ducts or onto the skin surface. This mode of secretion is characterized by the preservation of the secretory cell's integrity and viability. In contrast, holocrine secretion involves the entire cell disintegrating to release its contents, while endocrine secretion involves the release of hormones directly into the bloodstream.

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  • 44. 

    Cutaneous plexus is a network of vessels or nerves in the hypodermis, while the capillary loop/papillary plexus is a tight network of vessels in the dermis.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The explanation for the given correct answer is that the cutaneous plexus refers to a network of vessels or nerves located in the hypodermis, which is the layer of skin below the dermis. On the other hand, the capillary loop or papillary plexus is a tightly woven network of vessels found in the dermis, which is the layer of skin above the hypodermis. Therefore, the statement is true as it accurately describes the locations of these two networks of vessels in the skin.

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  • 45. 

    What is not part of the papillary layer in the dermis?

    • A.

      Meissners corpuscles

    • B.

      Dermal papillae

    • C.

      Ruffini corpuscles

    • D.

      Capillary loop

    Correct Answer
    C. Ruffini corpuscles
    Explanation
    Ruffini corpuscles are not part of the papillary layer in the dermis. The papillary layer is the top layer of the dermis, which is responsible for providing nutrients to the epidermis and regulating temperature. Meissner's corpuscles, dermal papillae, and capillary loops are all structures that are found within the papillary layer and play important roles in sensory perception, blood supply, and nourishment. However, Ruffini corpuscles are actually located deeper in the reticular layer of the dermis and are involved in detecting skin stretch and sustained pressure.

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  • 46. 

    What specific region contains hair follicles, sebaceous glands, apocrine, and eccrine sweat glands?

    • A.

      Scalp

    • B.

      Axillary

    • C.

      Plantar surfaces

    • D.

      Palma surfaces

    Correct Answer
    B. Axillary
    Explanation
    The axillary region refers to the area under the arm, commonly known as the armpit. This region contains hair follicles, sebaceous glands (oil glands), apocrine sweat glands (responsible for body odor), and eccrine sweat glands (responsible for regulating body temperature). The scalp, plantar surfaces (soles of the feet), and palmar surfaces (palms of the hands) do not contain all of these structures.

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  • 47. 

    2nd and 3rd degree burns may injure the papillary and reticular layer of the dermis.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Second and third degree burns are classified based on the depth of tissue damage. In these types of burns, the injury extends beyond the epidermis and affects the dermis. The dermis is composed of two layers: the papillary layer and the reticular layer. Therefore, it is correct to say that second and third degree burns may injure both the papillary and reticular layer of the dermis.

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  • 48. 

    What skin cancer can be fatal and has ABCD characteristics?

    • A.

      Basale cell carcinoma

    • B.

      Squamous cell carcinoma

    • C.

      Malignment melonoma

    • D.

      Malignment carcinoma

    Correct Answer
    C. Malignment melonoma
    Explanation
    Malignant melanoma is a type of skin cancer that can be fatal if not detected and treated early. It is characterized by the ABCD characteristics, which stand for asymmetry, border irregularity, color variation, and diameter larger than 6 millimeters. These characteristics are used to identify potentially cancerous moles or lesions on the skin.

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  • 49. 

    Squamous cell carcinoma can be found in the epidermis and mucous membranes.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Squamous cell carcinoma is a type of skin cancer that can indeed be found in the epidermis, which is the outermost layer of the skin. It can also occur in the mucous membranes, which are the moist linings of various organs and body cavities, such as the mouth, throat, and genital area. Therefore, the statement that squamous cell carcinoma can be found in the epidermis and mucous membranes is true.

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  • 50. 

    Retin A is a derivative of vitamin A and increases blood flow to the dermis.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Retin A is a derivative of vitamin A that is commonly used in skincare products. It is known to increase blood flow to the dermis, which is the deeper layer of the skin. This increased blood flow can help improve the overall health and appearance of the skin. Therefore, the statement is true.

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Quiz Review Timeline +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Apr 18, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • May 12, 2015
    Quiz Created by
    Veronicalpintos
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