Lsw Licensure Exam Quiz: MCQ!

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  • 1/115 Questions

    What is the fundamental unit of all living organisms?

    • Atom
    • Molecule
    • Tissue
    • Cell
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About This Quiz

This Lsw Licensure Exam Quiz assesses knowledge of the human skeletal system, focusing on its components and functions. It is designed to test comprehension of bone structure, joint functionality, and skeletal system roles, crucial for students and professionals in health-related fields.

Lsw Licensure Exam Quiz: MCQ! - Quiz

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  • 2. 

    The Greek root derm- means... 

    • Skin

    • Follicles

    • Nails

    • Hair

    Correct Answer
    A. Skin
    Explanation
    The Greek root "derm-" refers to the skin. This root is commonly used in medical terms related to the skin, such as dermatology (the study of skin) and dermatitis (inflammation of the skin). The word "derm-" itself is derived from the Greek word "derma" which means "skin". Therefore, the correct answer is "Skin".

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  • 3. 

    What are the main organs of respiration?

    • Intercostals

    • Nostrils

    • Bronchi

    • Lungs

    Correct Answer
    A. Lungs
    Explanation
    The main organs of respiration are the lungs. The lungs are responsible for the exchange of oxygen and carbon dioxide in the body. When we inhale, the lungs expand and fill with air, allowing oxygen to enter the bloodstream. When we exhale, the lungs contract and release carbon dioxide. Without the lungs, the process of respiration would not be possible, making them the essential organs for breathing.

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  • 4. 

    Movements that mix and propel food through the alimentary canal are called...

    • Peristaltic

    • Dynamic

    • Tonic

    • Isometric

    Correct Answer
    A. Peristaltic
    Explanation
    Peristaltic movements refer to the rhythmic contractions of the muscles in the alimentary canal that mix and propel food. These contractions help to push the food forward through the digestive system, allowing for efficient digestion and absorption of nutrients. Dynamic, tonic, and isometric do not accurately describe the specific movements involved in the digestion process.

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  • 5. 

    Which of the following is the main muscle of respiration?

    • Intercostals

    • Scalenes

    • Respiratory diaphragm

    • Abdominals

    Correct Answer
    A. Respiratory diaphragm
    Explanation
    The main muscle of respiration is the respiratory diaphragm. It is a dome-shaped muscle located at the base of the thoracic cavity. When it contracts, it flattens out and moves downward, causing the lungs to expand and air to be drawn into them. This muscle plays a crucial role in the process of inhalation and exhalation, making it the primary muscle involved in respiration. The intercostals, scalenes, and abdominals also contribute to breathing but are not the main muscle responsible for it.

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  • 6. 

    Muscle cell that forms the walls of hollow organs and tubes, such as the stomach, bladder, uterus, and blood vessels.

    • Smooth muscle

    • Skeletal muscle

    • Cardiac muscle

    Correct Answer
    A. Smooth muscle
    Explanation
    Smooth muscle is the correct answer because it is the type of muscle cell that forms the walls of hollow organs and tubes, such as the stomach, bladder, uterus, and blood vessels. Smooth muscle is involuntary, meaning it is not under conscious control, and it is responsible for the contraction and relaxation of these organs and vessels, allowing them to function properly. Unlike skeletal muscle, which is attached to bones and responsible for voluntary movement, and cardiac muscle, which forms the walls of the heart, smooth muscle is specifically adapted to the needs of the organs and tubes it surrounds.

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  • 7. 

    ________ describes the armpit region. Blank is... 

    • Axillary

    • Antebrachial

    • Brachial

    • Antecubital

    Correct Answer
    A. Axillary
    Explanation
    The term "axillary" refers to the armpit region. It is derived from the Latin word "axilla" which means armpit. The axillary region is located between the upper arm and the side of the chest. It contains important structures such as lymph nodes, blood vessels, and nerves.

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  • 8. 

    The skeletal system is composed of bones, cartilage, ligaments and joints.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The skeletal system is indeed composed of bones, cartilage, ligaments, and joints. Bones provide support and structure to the body, cartilage acts as a cushion between bones, ligaments connect bones to each other, and joints allow for movement. Therefore, the statement is true.

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  • 9. 

    Hip and shoulder joints are examples of synovial joints that offer the greates range of motion and are commonly know as...

    • Hinge joints

    • Pivot joints

    • Saddle joints

    • Ball and socket joints

    Correct Answer
    A. Ball and socket joints
    Explanation
    Hip and shoulder joints are examples of ball and socket joints. These joints allow for the greatest range of motion in the body, as they can move in multiple directions, including rotation. The rounded head of one bone fits into the socket of another bone, allowing for a wide range of movement. This type of joint is commonly found in the hip and shoulder, where the need for mobility is essential for activities such as walking, running, and throwing.

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  • 10. 

    Elevation of the medial edge of the foot so that the sole is turned inward (or medially) is called...

    • Eversion

    • Circumduction

    • Inversion

    • Rotation

    Correct Answer
    A. Inversion
    Explanation
    Inversion refers to the elevation of the medial edge of the foot, causing the sole to turn inward or medially. This movement is commonly observed when someone is standing on the outer edge of their foot, with the inner edge lifted off the ground. It is the opposite of eversion, which involves the elevation of the lateral edge of the foot, causing the sole to turn outward or laterally. Circumduction refers to a circular movement of a body part, while rotation refers to the movement of a bone around its own axis.

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  • 11. 

    Respiration that occurs between blood and body tissues

    • External respiration

    • Internal respiration

    Correct Answer
    A. Internal respiration
    Explanation
    Internal respiration refers to the exchange of gases (oxygen and carbon dioxide) between the blood and the body tissues. It occurs at the cellular level, where oxygen is delivered to the cells and carbon dioxide is removed from the cells. This process takes place in the capillaries, where oxygen diffuses from the blood into the tissues and carbon dioxide diffuses from the tissues into the blood. Internal respiration is essential for providing oxygen to the cells for energy production and removing waste carbon dioxide from the body.

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  • 12. 

    Which are pouch-like structures in the skin from which hair grows?

    • Follicles

    • Indentions

    • Sacs

    • Cysts

    Correct Answer
    A. Follicles
    Explanation
    Follicles are pouch-like structures in the skin from which hair grows. These structures are responsible for producing and nourishing the hair shaft. They are located within the dermis layer of the skin and consist of a hair bulb, which contains the cells that produce the hair, and a root sheath, which surrounds the hair shaft. The follicles play a crucial role in hair growth and are essential for maintaining healthy hair.

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  • 13. 

    Olfaction refers to which sense?

    • Taste

    • Vision

    • Hearing

    • Smell

    Correct Answer
    A. Smell
    Explanation
    Olfaction refers to the sense of smell. It is the ability to detect and perceive different odors and scents. This sense is mediated by the olfactory system, which includes the olfactory receptors in the nose and the olfactory bulb in the brain. Through olfaction, we are able to distinguish various smells and recognize familiar scents.

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  • 14. 

    What is a synonym for the word chewing?

    • Peristalsis

    • Mastication

    • Ingestion

    • Deglutition

    Correct Answer
    A. Mastication
    Explanation
    Mastication is the process of chewing food, which involves the movement of the jaw and teeth to break down food into smaller pieces. It is a synonym for the word "chewing" as both terms refer to the action of grinding and crushing food with the teeth. Peristalsis, ingestion, and deglutition are not synonyms for chewing as they refer to different processes in the digestive system, such as the movement of food through the esophagus and the act of swallowing.

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  • 15. 

    Muscle cell located in the heart wall

    • Smooth muscle

    • Skeletal muscle

    • Cardiac muscle

    Correct Answer
    A. Cardiac muscle
    Explanation
    Cardiac muscle is the correct answer because it is the type of muscle cell that is specifically found in the heart wall. Unlike skeletal muscle, which is responsible for voluntary movements, and smooth muscle, which is found in the walls of organs and blood vessels, cardiac muscle is uniquely designed to contract and pump blood throughout the body. It has specialized features, such as intercalated discs and branching fibers, which allow for coordinated and synchronized contractions, enabling the heart to effectively pump blood and maintain circulation.

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  • 16. 

    When oriented away from the midline of the body, we refer to it as...

    • Lateral

    • Anterior

    • Posterior

    • Inferior

    Correct Answer
    A. Lateral
    Explanation
    When an object is oriented away from the midline of the body, it is referred to as "lateral." This means that the object is positioned towards the side of the body, away from the center.

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  • 17. 

    Which of the following cells gives color to the skin and serves to decrease the amount of ultraviolet light that can penetrate into deeper layers of the skin?

    • Keratinocytes

    • Mesocytes

    • Astrocytes

    • Melanocytes

    Correct Answer
    A. Melanocytes
    Explanation
    Melanocytes are the cells responsible for giving color to the skin and producing melanin, the pigment that determines skin, hair, and eye color. Melanin also serves as a protective mechanism against the harmful effects of ultraviolet (UV) light. It absorbs and scatters UV radiation, preventing it from penetrating deeper layers of the skin where it can cause damage and increase the risk of skin cancer.

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  • 18. 

    Which of the following is NOT a characteristic of blood?

    • It is warmer than the rest of the body

    • Viscous fluid that is thicker and more adhesive than water

    • Color varies from bright scarlet to dull maroon

    • PH is slightly acid

    Correct Answer
    A. pH is slightly acid
    Explanation
    Blood is slightly alkaline, not acidic. The pH of blood is typically around 7.4, which is slightly alkaline. This is important for maintaining the proper functioning of various biochemical processes in the body.

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  • 19. 

    What is the process of eliminating indigestible or unabsorbed material from the body?

    • Digestion

    • Eradication

    • Purging

    • Defecation

    Correct Answer
    A. Defecation
    Explanation
    Defecation is the process of eliminating indigestible or unabsorbed material from the body. This occurs when waste products, such as undigested food, bacteria, and dead cells, are transported through the intestines and expelled from the rectum through the anus. It is a vital part of the digestive system and helps to maintain the body's overall health and well-being.

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  • 20. 

    If you were to assume the anatomical position, you would do which of the following?

    • Lie face down with both feet hip distance apart, toes pointing downward

    • Lie flat on your back, with the palms of your hands flat on the floor and your head looking over your right shoulder

    • Stand erect and face forward, with your palms facing forward with the thumbs to the side, and your feet about hip distance apart with toes pointing forward

    • Stand erect and face forward, with your palms facing each other and feet about hip distance apart with the toes pointing to the side

    Correct Answer
    A. Stand erect and face forward, with your palms facing forward with the thumbs to the side, and your feet about hip distance apart with toes pointing forward
    Explanation
    Assuming the anatomical position means standing upright with the body facing forward, arms at the sides, and palms facing forward with the thumbs pointing to the side. The feet should be about hip distance apart with the toes pointing forward. This position is commonly used as a reference point in anatomy and is important for accurate descriptions and measurements of the human body.

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  • 21. 

    The two regions of the skeleton are the axial and the appendicular skeleton. 

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The statement is true because the skeleton is divided into two main regions: the axial skeleton and the appendicular skeleton. The axial skeleton includes the skull, vertebral column, and ribcage, which provide support and protection for the vital organs. On the other hand, the appendicular skeleton consists of the bones of the limbs, shoulder girdle, and pelvic girdle, which are responsible for movement and locomotion. Therefore, the given statement accurately describes the two regions of the skeleton.

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  • 22. 

    What is the long cylindrical shaft of the bone?

    • Epiphysis

    • Diaphysis

    • Bony markings

    • Periosteum

    Correct Answer
    A. Diaphysis
    Explanation
    The diaphysis is the long cylindrical shaft of a bone. It is the main portion of the bone, located between the two ends called epiphyses. The diaphysis is composed of compact bone, which provides strength and support to the bone. It contains the medullary cavity, which is filled with yellow bone marrow in adults. The diaphysis also serves as a site for muscle attachment, allowing for movement and mobility.

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  • 23. 

    What is a meeting place for bones at which joint movement occurs?

    • Periosteum

    • Hemopoiesis

    • Diaphysis

    • Articulation

    Correct Answer
    A. Articulation
    Explanation
    Articulation refers to the meeting place for bones where joint movement occurs. It is the point where two or more bones come together and interact, allowing for various types of movement such as flexion, extension, rotation, and more. The articulation allows for the bones to connect and form a joint, enabling mobility and flexibility in the body.

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  • 24. 

    Which of the following are tiny sacs attached to alveolar ducts?

    • Epiglotis

    • Meatus

    • Alveoli

    • Bronchioles

    Correct Answer
    A. Alveoli
    Explanation
    Alveoli are tiny sacs attached to alveolar ducts. They are responsible for the exchange of oxygen and carbon dioxide between the lungs and the bloodstream.

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  • 25. 

    Which of the following best describes a muscular ring used to regulate movement of materials from one compartment of the gastrointestinal tract to another?

    • Orbicularis gius

    • Sphincter

    • Rugae

    • Villi

    Correct Answer
    A. Sphincter
    Explanation
    A sphincter is a muscular ring that regulates the movement of materials from one compartment of the gastrointestinal tract to another. It acts as a valve, opening and closing to control the flow of substances such as food or waste. Sphincters are found throughout the digestive system, including the esophagus, stomach, small intestine, and anus. They play a crucial role in maintaining the proper movement and function of the gastrointestinal tract.

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  • 26. 

    Respiration in which oxygen diffuses from the blood into the cells

    • External respiration

    • Internal respiration

    Correct Answer
    A. Internal respiration
    Explanation
    Internal respiration refers to the process in which oxygen from the blood diffuses into the cells. This is the opposite of external respiration, which involves the exchange of gases between the lungs and the blood. During internal respiration, oxygen is transported from the blood to the tissues, where it is used for cellular respiration. This process occurs in all cells of the body and is essential for the production of energy.

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  • 27. 

    Which ABO blood type is called the universal donor?

    • Type AB

    • Type O

    • Type A

    • Type B

    Correct Answer
    A. Type O
    Explanation
    Type O blood is considered the universal donor because it lacks both A and B antigens on the red blood cells. This means that it can be transfused to individuals with any blood type without causing an immune reaction. In contrast, individuals with type A blood have A antigens, type B blood have B antigens, and type AB blood have both A and B antigens, making them incompatible with certain blood types. Therefore, type O blood is the safest option for transfusions when the recipient's blood type is unknown or when there is a limited supply of compatible blood types.

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  • 28. 

    Which of the following represents a normal blood pressure reading for adults?

    • 80/120 mm Hg

    • 120/80 mm Hg

    • 139/94 mm Hg

    • 140/95 mm Hg

    Correct Answer
    A. 120/80 mm Hg
    Explanation
    The normal blood pressure reading for adults is 120/80 mm Hg. The first number (120) represents the systolic pressure, which is the pressure in the arteries when the heart beats and pumps blood. The second number (80) represents the diastolic pressure, which is the pressure in the arteries when the heart is at rest between beats. A reading of 120/80 mm Hg indicates that the blood pressure is within the normal range and suggests a healthy cardiovascular system.

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  • 29. 

    What is the port of entry for air as well as the beginning of the air conduction pathway?

    • Chest cavity

    • Lungs

    • Oropharynx

    • Nose

    Correct Answer
    A. Nose
    Explanation
    The nose is the port of entry for air as well as the beginning of the air conduction pathway. Air enters the body through the nostrils and travels through the nasal cavity, where it is warmed, filtered, and humidified before reaching the rest of the respiratory system. The nose also contains specialized cells that detect smells, making it an important organ for both respiration and olfaction.

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  • 30. 

    Which is the only artery that transports deoxygenated blood?

    • Coronary

    • Mesenteric

    • Pulmonary

    • Splenic

    Correct Answer
    A. Pulmonary
    Explanation
    The pulmonary artery is the only artery that transports deoxygenated blood. This artery carries blood from the heart to the lungs, where it picks up oxygen and gets rid of carbon dioxide. Once the blood is oxygenated, it returns to the heart through the pulmonary veins and is then pumped out to the rest of the body through the systemic circulation. The other arteries listed in the options (coronary, mesenteric, and splenic) all transport oxygenated blood to various organs and tissues in the body.

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  • 31. 

    Which is a skeletal muscle's contractile unit?

    • Fasciculi

    • Sarcomere

    • Perimysium

    • Retinacula

    Correct Answer
    A. Sarcomere
    Explanation
    A sarcomere is the correct answer because it is the basic functional unit of a skeletal muscle. It is responsible for muscle contraction and is composed of actin and myosin filaments. The sarcomere shortens during muscle contraction, leading to the overall shortening of the muscle. Fasciculi refers to bundles of muscle fibers, perimysium is the connective tissue surrounding the fascicles, and retinacula are bands of connective tissue that hold tendons in place.

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  • 32. 

    Delivers blood into the left ventricle

    • Right atrium

    • Left atrium

    • Right ventricle

    • Left ventricle

    Correct Answer
    A. Left atrium
    Explanation
    The left atrium is responsible for receiving oxygenated blood from the lungs and delivering it into the left ventricle. This is an important step in the circulation of blood throughout the body. The left ventricle then pumps this oxygenated blood out to the rest of the body, supplying it with the necessary nutrients and oxygen.

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  • 33. 

    Which are the two ends of a sarcomere?

    • A-bands

    • Z-lines

    • S-lines

    • H-bands

    Correct Answer
    A. Z-lines
    Explanation
    Z-lines are the two ends of a sarcomere. They are protein structures that anchor the thin actin filaments and define the boundary of the sarcomere. During muscle contraction, the Z-lines move closer together, causing the sarcomere to shorten and resulting in muscle contraction. Therefore, Z-lines play a crucial role in the regulation and coordination of muscle contraction.

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  • 34. 

    Which of the following is the left atrioventricular valve, also called the mitral valve?

    • Tricuspid valve

    • Pulmonary semilunar valve

    • Tricycle valve

    • Bicuspid valve

    Correct Answer
    A. Bicuspid valve
    Explanation
    The left atrioventricular valve, also known as the mitral valve, is the bicuspid valve. This valve is located between the left atrium and the left ventricle of the heart. It consists of two cusps or flaps that open and close to regulate the flow of blood from the atrium to the ventricle. The tricuspid valve is located on the right side of the heart, the pulmonary semilunar valve is located in the pulmonary artery, and the tricycle valve is not a valid term for any heart valve.

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  • 35. 

    Muscle cell that is also known as voluntary muscle or striated

    • Smooth muscle

    • Skeletal muscle

    • Cardiac muscle

    Correct Answer
    A. Skeletal muscle
    Explanation
    The correct answer is skeletal muscle. Skeletal muscles are also known as voluntary muscles or striated muscles. They are attached to the bones and are responsible for voluntary movements of the body. These muscles are called striated because of the alternating light and dark bands that are visible under a microscope. Unlike smooth muscles found in organs like the intestines and blood vessels, skeletal muscles are under conscious control and can be contracted and relaxed at will. Cardiac muscles, on the other hand, are found only in the heart and have a different structure and function.

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  • 36. 

    One of the functions of the skeletal system is to restore vital minerals. 

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The skeletal system does indeed play a role in restoring vital minerals. It stores minerals such as calcium and phosphorus, which are crucial for various bodily functions. When the body needs these minerals, the skeletal system releases them into the bloodstream. Additionally, the bones themselves serve as a reservoir for minerals, ensuring that the body has a constant supply to maintain proper functioning. Therefore, the statement "One of the functions of the skeletal system is to restore vital minerals" is true.

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  • 37. 

    What are the two ends of a long bone?

    • Epiphyses

    • Diaphyses

    • Surface markings

    • Periosteum

    Correct Answer
    A. Epiphyses
    Explanation
    The two ends of a long bone are called epiphyses. Epiphyses are the rounded, bulbous parts of the bone that are located at each end. They are covered with cartilage and serve as the attachment points for tendons and ligaments. The epiphyses play a crucial role in bone growth and development, as they contain the growth plates where new bone cells are formed.

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  • 38. 

    Which of the following is the process by which products of digestion move into the bloodstream or lymph vessels, then into the body's cells?

    • Ingestion

    • Digestion

    • Absorption

    • Incorporation

    Correct Answer
    A. Absorption
    Explanation
    Absorption is the correct answer because it refers to the process by which the products of digestion, such as nutrients, move from the digestive system into the bloodstream or lymph vessels. Once absorbed, these nutrients can then be transported to the body's cells to provide energy and support various biological functions. Ingestion refers to the act of taking in food, digestion refers to the breakdown of food into smaller molecules, and incorporation is not a term commonly used in the context of digestion and nutrient absorption.

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  • 39. 

    What is a ball-like, masticated lump of food once swallowed?

    • Mastastocyte

    • Wadous

    • Bolus

    • Chyme

    Correct Answer
    A. Bolus
    Explanation
    A ball-like, masticated lump of food once swallowed is called a bolus. After chewing and mixing with saliva, food forms into a compact mass that can easily pass through the esophagus and into the stomach. The bolus is then further broken down and digested in the stomach and intestines.

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  • 40. 

    What is the muscular tube that connects the pharynx to the stomach by piercing the diaphragm?

    • Duodenum

    • Trachea

    • Esophagus

    • Ileum

    Correct Answer
    A. Esophagus
    Explanation
    The muscular tube that connects the pharynx to the stomach by piercing the diaphragm is called the esophagus. The esophagus is responsible for transporting food and liquids from the mouth to the stomach through a series of contractions known as peristalsis. It is located behind the trachea and in front of the spinal column.

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  • 41. 

    Which portion of the colon continues from the cecum up the lower right abdomen?

    • Ascending colon

    • Sigmoid colon

    • Transverse colon

    • Descending colon

    Correct Answer
    A. Ascending colon
    Explanation
    The ascending colon is the portion of the colon that continues from the cecum up the lower right abdomen. It is responsible for absorbing water and electrolytes from the remaining indigestible food matter, forming feces.

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  • 42. 

    The fibrous membrane covering bone that is the bone's life support system is called the intraosteum.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The fibrous membrane covering bone that is the bone's life support system is actually called the periosteum, not the intraosteum. The periosteum is a dense connective tissue membrane that surrounds the outer surface of bones, providing them with blood vessels, nerves, and nutrients necessary for their growth and repair. The intraosteum does not exist and is not involved in bone support or function. Therefore, the statement is false.

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  • 43. 

    Circular movemnt created when a bone moves around its own central axis is called... 

    • Rotation

    • Protraction

    • Circumduction

    • Retraction

    Correct Answer
    A. Rotation
    Explanation
    Rotation is the correct answer because it refers to the circular movement created when a bone moves around its own central axis. This movement can be seen in joints such as the shoulder and hip, where the bone rotates internally or externally.

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  • 44. 

    Where are the vocal cords located?

    • Trachea

    • Pharynx

    • Larynx

    • Epiglottis

    Correct Answer
    A. Larynx
    Explanation
    The vocal cords are located in the larynx. The larynx is commonly known as the voice box and is located in the throat. It is responsible for producing sound and controlling the pitch and volume of the voice. The vocal cords, which are two folds of mucous membrane, are located within the larynx. When air passes through the vocal cords, they vibrate, producing sound.

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  • 45. 

    The sarcoplasmic reticulum stores and releases which ion?

    • Phosphorus

    • Potassium

    • Sodium

    • Calcium

    Correct Answer
    A. Calcium
    Explanation
    The sarcoplasmic reticulum is a specialized organelle found in muscle cells that stores and releases calcium ions. Calcium plays a crucial role in muscle contraction as it binds to proteins in the muscle fibers, allowing them to interact and generate force. When an action potential reaches the sarcoplasmic reticulum, it releases stored calcium ions into the muscle cell, triggering muscle contraction. Therefore, the correct answer is calcium.

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  • 46. 

    The oral cavity includes which of the following groups?

    • Tongue, oropharynx, esophagus

    • Tongue, teeth, gums, opening of the salivary ducts

    • Duodenum, jejunum, ileum

    • Tongue, teeth, opening of the sinuses

    Correct Answer
    A. Tongue, teeth, gums, opening of the salivary ducts
    Explanation
    The oral cavity includes the tongue, teeth, gums, and opening of the salivary ducts. The tongue is a muscular organ that aids in speech and swallowing. Teeth are used for biting and chewing food. Gums surround and support the teeth. The opening of the salivary ducts allows saliva to enter the oral cavity, which helps with digestion and lubrication.

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  • 47. 

    Freely movable joins are classified as...

    • Synarthrotic

    • Amphiarthrotic

    • Diarthrotic

    • Triarthrotic

    Correct Answer
    A. Diarthrotic
    Explanation
    Diarthrotic joints are freely movable joints. These joints allow for a wide range of movement and are found in the limbs, such as the shoulder and hip joints. Synarthrotic joints are immovable, while amphiarthrotic joints allow for limited movement. Triarthrotic is not a recognized classification for joints. Therefore, the correct answer is diarthrotic.

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  • 48. 

    Delivers blood to the right ventricle

    • Right atrium

    • Left atrium

    • Right ventricle

    • Left ventricle

    Correct Answer
    A. Right atrium
    Explanation
    The right atrium receives deoxygenated blood from the body through the superior and inferior vena cava. It then contracts, pushing the blood into the right ventricle, which will pump the blood to the lungs for oxygenation. Therefore, the right atrium delivers blood to the right ventricle.

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  • 49. 

    Which of the following is the term used to describe the opposing muscle that relaxes and stretches or eccentrically contracts to allow the actions of the agonists to occur?

    • Agonist

    • Synergist

    • Antagonist

    • Fixator

    Correct Answer
    A. Antagonist
    Explanation
    The term used to describe the opposing muscle that relaxes and stretches or eccentrically contracts to allow the actions of the agonists to occur is the antagonist. The antagonist muscle works in opposition to the agonist muscle, allowing for controlled movement and preventing excessive or uncontrolled contraction of the agonist.

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  • Feb 09, 2024
    Quiz Edited by
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  • Dec 15, 2011
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    Omtpmassage
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