Human Anatomy, Physiology And Kinesiology

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  • 1/90 Questions

    Rhythmic waves of muscular contraction that occur in the walls of various tubular organs and help to propel food through the digestive system

    • Polarization
    • Peristalsis
    • Fibrillation
    • Twitch
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Human Anatomy, Physiology And Kinesiology - Quiz
About This Quiz

This quiz covers key aspects of human anatomy, physiology, and kinesiology, including muscle functions, joint types, and bodily processes.

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  • 2. 

    Necrosis of heart muscle from ischemia is known as a "heart attack" or

    • Angina pectoris

    • Coronary bypass

    • Myocardial infarction

    • Aneurysm

    Correct Answer
    A. Myocardial infarction
    Explanation
    Myocardial infarction refers to the necrosis or death of heart muscle tissue due to inadequate blood supply, usually caused by a blockage in one or more coronary arteries. This condition is commonly known as a "heart attack" and is characterized by symptoms such as chest pain, shortness of breath, and sweating. Angina pectoris, on the other hand, refers to chest pain or discomfort that occurs when the heart muscle doesn't receive enough oxygen-rich blood. Coronary bypass is a surgical procedure to redirect blood flow around blocked or narrowed coronary arteries. Aneurysm refers to a weakened and bulging section in the wall of a blood vessel, which can occur in various parts of the body, including the heart, but is not directly related to heart muscle necrosis from ischemia.

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  • 3. 

    Which type of muscle is responsible for movement of the bones

    • Involuntary

    • Non striated (smooth)

    • Striated (skeletal)

    • Branching (cardiac)

    Correct Answer
    A. Striated (skeletal)
    Explanation
    The type of muscle responsible for movement of the bones is striated (skeletal) muscle. This type of muscle is attached to the bones by tendons and is under voluntary control, meaning we can consciously control its contractions. Striated muscle appears striped or striated under a microscope due to the arrangement of its contractile proteins. It is responsible for the movement of our limbs and other body parts, allowing us to walk, run, lift, and perform various other physical activities.

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  • 4. 

    Which type of cell plays a role in the body's defense against bacteria

    • Erythrocytes (RBC's)

    • Thrombocytes (platelets)

    • Leukocytes (WBC's)

    • Fibrocytes (CT cells)

    Correct Answer
    A. Leukocytes (WBC's)
    Explanation
    Leukocytes, also known as white blood cells (WBC's), play a crucial role in the body's defense against bacteria. They are part of the immune system and are responsible for identifying and destroying harmful bacteria and other pathogens. Leukocytes can engulf bacteria through a process called phagocytosis or release chemicals that can kill bacteria directly. They also produce antibodies that help in neutralizing bacteria and preventing their further spread in the body. Therefore, leukocytes are the type of cells that actively participate in the body's defense against bacteria.

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  • 5. 

    Which type of joint is most mobile

    • Saddle

    • Ball and socket

    • Hinge

    • Gliding

    Correct Answer
    A. Ball and socket
    Explanation
    The ball and socket joint is the most mobile type of joint. This is because it allows for movement in multiple directions, including rotation, flexion, extension, abduction, and adduction. The rounded end of one bone fits into the cup-like socket of another bone, allowing for a wide range of motion. This type of joint is found in the shoulder and hip, which require a high degree of mobility for various activities such as throwing, reaching, and walking.

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  • 6. 

    A diebetic patient who has unknowingly given himself too much insulin would likely be trying to balance their system by eating foods containing

    • Protein

    • Fat

    • Potassium

    • Glucose

    Correct Answer
    A. Glucose
    Explanation
    When a diabetic patient accidentally injects too much insulin, it can cause their blood sugar levels to drop dangerously low. In order to balance their system and raise their blood sugar levels, they would need to consume foods containing glucose. Glucose is a form of sugar that is quickly absorbed into the bloodstream and provides immediate energy. Eating foods high in protein, fat, or potassium would not have the same effect on raising blood sugar levels as glucose would.

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  • 7. 

    Name the organelle that is responsible for cellular energy production

    • Lysosome

    • Golgi apparatus

    • Mitochondria

    • Smooth endoplasmic reticulum

    Correct Answer
    A. Mitochondria
    Explanation
    The mitochondria is the organelle responsible for cellular energy production. It is often referred to as the "powerhouse" of the cell because it produces adenosine triphosphate (ATP), which is the main source of energy for cellular activities. The mitochondria have their own DNA and can self-replicate, allowing them to generate energy efficiently. They are found in large numbers in cells that require a lot of energy, such as muscle cells. The other organelles listed, such as the lysosome, golgi apparatus, and smooth endoplasmic reticulum, have different functions and are not directly involved in energy production.

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  • 8. 

    A lateral curve of the spine is a deviation known as

    • Lordosis

    • Kyphosis

    • Scoliosis

    • Trichinosis

    Correct Answer
    A. Scoliosis
    Explanation
    Scoliosis is a lateral curve of the spine, which means that the spine curves sideways instead of being straight. This deviation is characterized by an abnormal S or C-shaped curve in the spine. Lordosis refers to an inward curvature of the spine, while kyphosis refers to an outward curvature of the spine. Trichinosis, on the other hand, is a parasitic infection caused by eating undercooked meat. Therefore, the correct answer is scoliosis.

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  • 9. 

    Endocrine glands located on top of the kidneys

    • Adrenal

    • Pineal

    • Pancreas

    • Parathyroid

    Correct Answer
    A. Adrenal
    Explanation
    The adrenal glands are endocrine glands located on top of the kidneys. They are responsible for producing hormones such as adrenaline and cortisol, which play important roles in regulating metabolism, immune response, and stress response. The adrenal glands consist of two parts: the adrenal cortex and the adrenal medulla. The cortex produces hormones like cortisol and aldosterone, while the medulla produces adrenaline and noradrenaline. The adrenal glands are essential for maintaining proper bodily functions and responding to stress.

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  • 10. 

    The circulation of blood from the right ventricle through the pulmonary artery to the lung is called

    • Renal circulation

    • Portal circulation

    • Systemic circulation

    • Pulmonary circulation

    Correct Answer
    A. Pulmonary circulation
    Explanation
    Pulmonary circulation refers to the movement of blood from the right ventricle of the heart to the lungs through the pulmonary artery. In the lungs, the blood picks up oxygen and gets rid of carbon dioxide. This oxygenated blood then returns to the left atrium of the heart through the pulmonary veins. Pulmonary circulation is responsible for oxygenating the blood and removing waste products, ensuring that oxygen-rich blood is delivered to the rest of the body.

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  • 11. 

    Which artery should you be aware of when working in the cervical area

    • Radial

    • Femoral

    • Carotid

    • Brachial

    Correct Answer
    A. Carotid
    Explanation
    When working in the cervical area, it is important to be aware of the carotid artery. The carotid artery is a major blood vessel located in the neck that supplies blood to the brain. It is responsible for delivering oxygen and nutrients to the brain, making it a critical artery to be cautious of during any procedures or treatments in the cervical area.

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  • 12. 

    The most superficial abdominal muscle on the anterior surface of the body is the

    • Rectus abdominis

    • Transverse abdominis

    • Internal oblique

    • External oblique

    Correct Answer
    A. Rectus abdominis
    Explanation
    The rectus abdominis is the most superficial abdominal muscle on the anterior surface of the body. It is a long, paired muscle that runs vertically down the front of the abdomen. It is responsible for flexing the trunk, as well as providing support and stability to the abdominal wall. The transverse abdominis, internal oblique, and external oblique are also abdominal muscles, but they are located deeper than the rectus abdominis.

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  • 13. 

    Descending order of the small intestine

    • Fundus, duodenum, jejunum

    • Jejunum, ileum, duodenum

    • Duodenum, jejunum, ileum

    • Pyloris, jejunum, ileum

    Correct Answer
    A. Duodenum, jejunum, ileum
    Explanation
    The small intestine is divided into three parts: the duodenum, jejunum, and ileum. These parts are arranged in a specific order within the small intestine. The duodenum is the first part of the small intestine and is connected to the stomach. It is followed by the jejunum, which is the middle part, and then the ileum, which is the last part of the small intestine. Therefore, the correct order in descending order is duodenum, jejunum, ileum.

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  • 14. 

    A substance such as a blood clot or bubble of gas that is carried by the blood and obstructs a blood vessel is known as a(n)

    • Arteriosclerosis

    • Infarct

    • Phlebitis

    • Embolus

    Correct Answer
    A. Embolus
    Explanation
    An embolus is a substance, such as a blood clot or bubble of gas, that is carried by the blood and obstructs a blood vessel. It can cause a blockage in the blood flow, leading to serious complications depending on the size and location of the embolus. Arteriosclerosis refers to the hardening and narrowing of the arteries, while an infarct is an area of tissue death due to an interruption in blood supply. Phlebitis refers to inflammation of a vein. Therefore, the correct answer is embolus.

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  • 15. 

    Part of the brain responsible for muscular coordination and balance

    • Brain stem

    • Cerebellum

    • Diencephalon

    • Cerebrum

    Correct Answer
    A. Cerebellum
    Explanation
    The cerebellum is the part of the brain responsible for muscular coordination and balance. It is located at the back of the brain, just above the brain stem. The cerebellum receives information from the sensory systems, the spinal cord, and other parts of the brain, and uses this information to coordinate voluntary movements, maintain posture, and regulate balance. Damage to the cerebellum can result in problems with coordination, balance, and motor control.

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  • 16. 

    Which muscle is located on the posterior surface of the lower leg, crossing two joints and responsible for plantar flexion of the ankle

    • Rectus femoris

    • Soleus

    • Gastrocnemius

    • Popliteus

    Correct Answer
    A. Gastrocnemius
    Explanation
    The correct answer is gastrocnemius. The gastrocnemius muscle is located on the posterior surface of the lower leg and crosses two joints, the knee and the ankle. It is responsible for plantar flexion of the ankle, which means it helps to point the foot downward. The rectus femoris is a muscle located in the thigh and is not involved in plantar flexion of the ankle. The soleus is also located in the lower leg and is involved in plantar flexion, but it does not cross two joints. The popliteus is a small muscle located behind the knee and is responsible for unlocking the knee joint.

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  • 17. 

    Which of the following is a two joint muscle

    • Biceps brachii

    • Brachialis

    • Soleus

    • Coracobrachialis

    Correct Answer
    A. Biceps brachii
    Explanation
    The biceps brachii is a two-joint muscle because it crosses both the shoulder and elbow joints. It originates from the scapula and inserts on the radius, allowing it to flex the elbow and supinate the forearm. The other muscles listed, brachialis, soleus, and coracobrachialis, are all one-joint muscles as they only cross and act on a single joint.

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  • 18. 

    A bladder infection spreads upwards to the kidneys through which structures

    • Ureters

    • Glomerulus

    • Urethra

    • Pyloric sphincter

    Correct Answer
    A. Ureters
    Explanation
    A bladder infection can spread upwards to the kidneys through the ureters. The ureters are the tubes that connect the kidneys to the bladder, allowing urine to flow from the kidneys to the bladder. If there is an infection in the bladder, bacteria can travel up the ureters and reach the kidneys, causing a kidney infection. Therefore, the ureters are the structures through which a bladder infection can spread to the kidneys.

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  • 19. 

    A cord or sheet of connective tissue by which two or more bones are bound together at a joint

    • Linea alba

    • Tendon

    • Ligament

    • Aponeurosis

    Correct Answer
    A. Ligament
    Explanation
    A ligament is a cord or sheet of connective tissue that binds two or more bones together at a joint. Unlike tendons, which connect muscles to bones, ligaments specifically connect bones to other bones. Ligaments provide stability and support to joints, preventing excessive movement and maintaining proper alignment. They are strong and flexible, allowing for controlled movement while also preventing dislocation or excessive stretching of the joint. The linea alba is a different structure, a fibrous band in the midline of the abdomen, while an aponeurosis is a flat, sheet-like tendon.

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  • 20. 

    An excessive accumulation of fluid within the interstitial space is known as

    • Plasma

    • Interstitial serum

    • Lymph

    • Edema

    Correct Answer
    A. Edema
    Explanation
    Excessive accumulation of fluid within the interstitial space is known as edema. Edema occurs when there is an imbalance between the amount of fluid being pushed out of the blood vessels into the tissues and the amount of fluid being returned to the blood vessels. This can be caused by various factors such as increased capillary permeability, impaired lymphatic drainage, or increased fluid retention. Edema can occur in different parts of the body and is often characterized by swelling, pain, and discomfort.

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  • 21. 

    Artery located behind the knee supplying blood to the knee joint and certain muscles in the thigh and calf

    • Femoral

    • Popliteal

    • Posterior tibial

    • Internal iliac

    Correct Answer
    A. Popliteal
    Explanation
    The popliteal artery is located behind the knee and is responsible for supplying blood to the knee joint, as well as certain muscles in the thigh and calf. It is an important artery in the lower limb, as it ensures proper blood flow to these areas, allowing for normal function and movement.

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  • 22. 

    The most superficial layer of meninges composed primarily of tough, white fibrous connective tissue

    • Pia mater

    • Arachnoid mater

    • Dura mater

    • Cerebrospinal layer

    Correct Answer
    A. Dura mater
    Explanation
    The dura mater is the correct answer because it is the most superficial layer of the meninges. It is composed primarily of tough, white fibrous connective tissue. The dura mater serves as a protective covering for the brain and spinal cord, providing stability and support. It is the outermost layer of the meninges and is responsible for protecting the central nervous system from external forces and trauma.

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  • 23. 

    Transmits nerve impulses from the brain to muscle

    • Sensory

    • Arachnoid

    • Motor

    • Cecum

    Correct Answer
    A. Motor
    Explanation
    The term "motor" refers to the ability to transmit nerve impulses from the brain to muscles. This implies that the correct answer is "motor" because it aligns with the given description. The other options, "sensory," "arachnoid," and "cecum," do not accurately match the given description and are therefore incorrect.

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  • 24. 

    Which point of muscle attachment is considered most movable

    • Proximal

    • Origin

    • Insertion

    • None of the above

    Correct Answer
    A. Insertion
    Explanation
    The point of muscle attachment that is considered most movable is the insertion. This is because the insertion point is the attachment of the muscle to the bone that moves the most during muscle contraction. The origin, on the other hand, is the attachment of the muscle to the bone that remains relatively fixed. Therefore, the insertion point is the correct answer as it is the attachment point that experiences the most movement.

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  • 25. 

    Nerve bundel, which passes between the anterior and middle scalene muscles as it moves toward the axilla

    • Cervical plexus

    • Lumbosacral plexus

    • Brachial plexus

    • Phrenic nerves

    Correct Answer
    A. Brachial plexus
    Explanation
    The brachial plexus is a network of nerves that originates from the spinal cord in the neck region and extends down the arm. It is responsible for innervating the muscles of the upper limb and providing sensory information from the arm and hand. The brachial plexus passes between the anterior and middle scalene muscles as it moves towards the axilla (armpit). Therefore, the given answer correctly identifies the nerve bundle that follows this pathway.

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  • 26. 

    Phase of the cardiac cycle during which a heart chamber wall is relaxed

    • Hyperbole

    • Systole

    • Cardiac atony

    • Diastole

    Correct Answer
    A. Diastole
    Explanation
    Diastole refers to the phase of the cardiac cycle when a heart chamber wall is relaxed. During this phase, the heart muscles are at rest, allowing the chambers to fill with blood. This relaxation period is essential for the heart to replenish oxygen and nutrients. It is followed by the systole phase, during which the heart contracts to pump the blood out of the chambers. Hyperbole and cardiac atony are unrelated terms, making systole the only incorrect answer.

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  • 27. 

    Increasing the angle of a joint is

    • Flexion

    • Rotations

    • Circumduction

    • Extension

    Correct Answer
    A. Extension
    Explanation
    Increasing the angle of a joint refers to the movement that straightens or opens the joint. This movement is known as extension.

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  • 28. 

    The functional unit of the kidney for urine production

    • Adrenal

    • Nephron

    • Ureter

    • Urethra

    Correct Answer
    A. Nephron
    Explanation
    The nephron is the functional unit of the kidney responsible for urine production. It is a microscopic structure that filters waste products from the blood and reabsorbs essential substances back into the body. The nephron consists of a glomerulus, a network of tiny blood vessels where filtration occurs, and a tubule where reabsorption and secretion take place. This process helps regulate the balance of water, electrolytes, and other substances in the body, ultimately producing urine. The adrenal gland, ureter, and urethra are not directly involved in urine production and do not have the same functions as the nephron.

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  • 29. 

    Inversion of teh foot by the tibialis anterior turns the sole

    • Toward the midline

    • Downward

    • Away from the midline

    • Upward

    Correct Answer
    A. Toward the midline
    Explanation
    The tibialis anterior muscle is responsible for the inversion of the foot. Inversion refers to the movement of the sole of the foot towards the midline of the body. Therefore, when the tibialis anterior contracts, it turns the sole of the foot towards the midline.

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  • 30. 

    The origin of the short head of the biceps brachii is

    • Coracoid process

    • Ulnar tuberosity

    • Radial tuberosity

    • Supraglenoid tubercule

    Correct Answer
    A. Coracoid process
    Explanation
    The origin of the short head of the biceps brachii is the coracoid process. The biceps brachii is a muscle located in the upper arm and it has two heads - the long head and the short head. The short head originates from the coracoid process, which is a bony projection on the scapula (shoulder blade). This attachment point allows the short head to contribute to the flexion and supination of the forearm, along with the long head of the biceps brachii.

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  • 31. 

    Mineral required to facilitate the attraction of actin and myosin within a muscle

    • Sodium

    • Phosphorus

    • Magnesium

    • Calcium

    Correct Answer
    A. Calcium
    Explanation
    Calcium is the mineral required to facilitate the attraction of actin and myosin within a muscle. Actin and myosin are proteins that are responsible for muscle contraction. When the muscle receives a signal to contract, calcium is released and binds to specific sites on actin, allowing myosin to bind to actin and initiate the contraction process. Without calcium, the actin and myosin cannot interact properly, leading to impaired muscle contraction. Thus, calcium is essential for the proper functioning of muscles.

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  • 32. 

    Vitamin D is synthesized in the

    • Skin

    • Muscle tissue

    • Bone

    • Hair

    Correct Answer
    A. Skin
    Explanation
    Vitamin D is synthesized in the skin through a process triggered by exposure to sunlight. When the skin is exposed to UVB rays, a precursor molecule in the skin is converted into a form of vitamin D called cholecalciferol. This precursor molecule is then further converted into its active form, known as calcitriol, by the liver and kidneys. Therefore, the skin plays a crucial role in the synthesis of vitamin D in the body.

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  • 33. 

    Structure which initiates stretch reflex in muscle causing contraction

    • Lysosome

    • Spindle cell

    • Precapillary sphincter

    • None of the above

    Correct Answer
    A. Spindle cell
    Explanation
    A spindle cell is a type of specialized muscle cell found in the muscle spindle, which is a sensory organ located within skeletal muscles. The muscle spindle is responsible for initiating the stretch reflex, which causes muscle contraction in response to stretching. Therefore, the spindle cell is the correct answer as it is directly involved in initiating the stretch reflex and muscle contraction.

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  • 34. 

    This joint permits biaxial movements and exists only between the carpal and metacarpal bones of the thumb

    • Ellipsoidal

    • Saddle

    • Gliding

    • Hinge

    Correct Answer
    A. Saddle
    Explanation
    A saddle joint allows for biaxial movements and is found only between the carpal and metacarpal bones of the thumb. This type of joint is characterized by the concave and convex surfaces of the articulating bones, which fit together like a rider sitting on a saddle. The saddle joint allows for a wide range of movements, including flexion, extension, abduction, adduction, and opposition, making it well-suited for the complex movements of the thumb.

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  • 35. 

    The longest vein in the body originating on trhe medial aspect of the foot and extending upward along the medial side of the leg toward the inguinal ligament

    • Popliteal

    • Femoral

    • Great saphenous

    • Anterior tibial

    Correct Answer
    A. Great saphenous
    Explanation
    The great saphenous vein is the correct answer because it is the longest vein in the body that starts on the medial aspect of the foot and runs along the medial side of the leg towards the inguinal ligament. The popliteal vein is located behind the knee and does not extend all the way to the foot. The femoral vein is located in the thigh and does not originate on the foot. The anterior tibial vein is located in the lower leg and does not extend all the way to the inguinal ligament.

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  • 36. 

    Avascular tissue with very little intercellular matrix specializing in absorption, secretion and protection

    • Nervous

    • Epithelial

    • Connective

    • Areolar

    Correct Answer
    A. Epithelial
    Explanation
    Epithelial tissue is the correct answer because it is avascular, meaning it lacks blood vessels, and has very little intercellular matrix. Epithelial tissue is specialized in absorption, secretion, and protection, making it suitable for lining and covering surfaces in the body. Nervous tissue is involved in transmitting electrical signals, connective tissue provides support and structure, and areolar tissue is a type of loose connective tissue with a more extensive intercellular matrix.

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  • 37. 

    The most superficial muscle of the back is

    • Trapezius

    • Latissimuss dorsi

    • Rhomboids

    • Erector spinae

    Correct Answer
    A. Trapezius
    Explanation
    The trapezius muscle is the most superficial muscle of the back. It is a large, triangular muscle that extends from the base of the skull down to the middle of the back and laterally to the shoulders. The trapezius muscle is responsible for various movements of the shoulder blades, such as elevation, retraction, and rotation. It also helps in maintaining good posture and stabilizing the neck and upper back.

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  • 38. 

    Quadrant of the abdomen in which the liver is located

    • Upper left

    • Lower right

    • Lower left

    • Upper right

    Correct Answer
    A. Upper right
    Explanation
    The liver is located in the upper right quadrant of the abdomen. This is because the liver is the largest solid organ in the body and is situated on the right side of the abdomen, just below the diaphragm. It extends across the midline of the body and occupies a significant portion of the upper right quadrant. This location allows the liver to perform its vital functions, such as filtering toxins from the blood, producing bile, and storing nutrients.

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  • 39. 

    The action of the teres minor is

    • Medial rotation of humerus

    • Lateral rotation of humerus

    • Flexion of humerus

    • Flexion of forearm

    Correct Answer
    A. Lateral rotation of humerus
    Explanation
    The action of the teres minor is the lateral rotation of the humerus. This means that when the teres minor muscle contracts, it causes the arm bone to rotate outwardly away from the body. This movement is important for various activities such as throwing, reaching, and lifting objects away from the body.

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  • 40. 

    The insertion of the SCM is

    • Sternum

    • Hyoid

    • Clavicle

    • Mastoid process

    Correct Answer
    A. Mastoid process
    Explanation
    The correct answer is mastoid process. The mastoid process is a bony prominence located behind the ear, which serves as an attachment site for various neck muscles. It is easily palpable and can be used as a landmark during physical examinations. The insertion of the SCM (sternocleidomastoid) muscle refers to the point where the muscle attaches to a bone, in this case, the mastoid process. The SCM muscle plays a crucial role in tilting and rotating the head, as well as assisting in the elevation of the sternum during deep inhalation.

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  • 41. 

    The most abundant tissue in the body is

    • Epithelial

    • Muscular

    • Connective

    • Nervous

    Correct Answer
    A. Connective
    Explanation
    Connective tissue is the most abundant tissue in the body because it is found throughout the body and serves various functions. It provides support and structure to organs and tissues, connects different body parts, cushions and protects organs, and transports nutrients and waste. Connective tissue is composed of cells, fibers, and an extracellular matrix, which gives it its strength and flexibility. It is found in various forms such as tendons, ligaments, cartilage, bone, blood, and adipose tissue.

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  • 42. 

    Hypertonicity of this muscle can put undue pressure on the sciatic nerve bundel resulting in pain or numbness radiating down the posterior thigh and leg

    • Gluteus maximus

    • Tensor fascia lata

    • Iliopsoas

    • Piriformis

    Correct Answer
    A. Piriformis
    Explanation
    The piriformis muscle is located deep in the buttocks and plays a role in hip rotation. When the piriformis muscle becomes hypertonic (overly contracted), it can compress or irritate the sciatic nerve that runs beneath or through the muscle. This compression can lead to pain or numbness that radiates down the posterior thigh and leg, a condition known as piriformis syndrome. Therefore, the given explanation suggests that the correct answer for the question is piriformis.

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  • 43. 

    Stimulation of the parasympathetic nervous system causes

    • Increased heart rate

    • Decreased heart rate

    • Death

    • None of the above

    Correct Answer
    A. Decreased heart rate
    Explanation
    Stimulation of the parasympathetic nervous system causes a decrease in heart rate. The parasympathetic nervous system is responsible for the body's rest and digest response, which promotes relaxation and conserves energy. When activated, it releases the neurotransmitter acetylcholine, which slows down the heart rate by inhibiting the activity of the sinoatrial (SA) node, the natural pacemaker of the heart. This decrease in heart rate allows the body to conserve energy and promotes a state of rest and recovery.

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  • 44. 

    Valve located between the left atrium and left ventricle which is sometimes damaged from rheumatic fever

    • Aortic semilunar

    • Pulmonary semilunar

    • Tricuspid

    • Bicuspid (mitral)

    Correct Answer
    A. Bicuspid (mitral)
    Explanation
    The bicuspid (mitral) valve is located between the left atrium and left ventricle. It is responsible for preventing backflow of blood from the left ventricle to the left atrium during ventricular contraction. Rheumatic fever is a condition that can cause damage to the heart valves, including the bicuspid valve. This damage can result in the valve not closing properly, leading to regurgitation of blood. Therefore, the bicuspid valve is sometimes damaged from rheumatic fever.

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  • 45. 

    Insulin is secreted by

    • Alpha cells

    • Melanocytes

    • Beta cells

    • Sebaceous glands

    Correct Answer
    A. Beta cells
    Explanation
    Insulin is a hormone that is responsible for regulating blood sugar levels in the body. It is primarily secreted by beta cells in the pancreas. These cells are specifically designed to produce and release insulin in response to high blood sugar levels. Alpha cells in the pancreas, on the other hand, secrete a different hormone called glucagon, which has the opposite effect of insulin. Melanocytes are cells responsible for producing melanin, the pigment that gives color to the skin, hair, and eyes. Sebaceous glands are responsible for producing sebum, an oily substance that moisturizes the skin and hair. Therefore, the correct answer is beta cells.

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  • 46. 

    The rotator cuff is found at which joint of the body

    • Radioulnar joint

    • Humeroulnar joint

    • Sternoclavicular joint

    • Scapulohumeral joint

    Correct Answer
    A. Scapulohumeral joint
    Explanation
    The rotator cuff is a group of muscles and tendons that surround the shoulder joint, providing stability and allowing for a wide range of motion. The scapulohumeral joint, also known as the shoulder joint, is where the head of the humerus (upper arm bone) connects with the scapula (shoulder blade). This is the joint where the rotator cuff is located, making it the correct answer. The radioulnar joint is found in the forearm, the humeroulnar joint is found in the elbow, and the sternoclavicular joint is found where the clavicle (collarbone) connects with the sternum (breastbone), none of which are the location of the rotator cuff.

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  • 47. 

    Which is an example of the sesamoid bone

    • Distal phalange of the 5th toe

    • Patella

    • Medial epicondyle

    • Hyoid

    Correct Answer
    A. Patella
    Explanation
    The patella is an example of a sesamoid bone. Sesamoid bones are small, round bones that are embedded within tendons, and their main function is to protect the tendon and increase its mechanical advantage. The patella is a sesamoid bone located in the tendon of the quadriceps muscle, and it helps to increase the leverage of the muscle during knee extension.

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  • 48. 

    Brachialis is the strongest flexor of the

    • Wrist

    • Humerus

    • Hip

    • Elbow

    Correct Answer
    A. Elbow
    Explanation
    The correct answer is elbow because the brachialis muscle is located in the upper arm and is responsible for flexing the elbow joint. It is a strong muscle that assists in the movement of the forearm and helps in activities such as lifting objects or performing bicep curls. The brachialis is stronger than other muscles mentioned in the options (wrist, humerus, hip) when it comes to flexing the elbow joint.

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  • 49. 

    The quadriceps muscle that attaches to the anterior inferior iliac spine is the

    • Vastus medialis

    • Vastus lateralis

    • Vastus intermedius

    • Rectus femoris

    Correct Answer
    A. Rectus femoris
    Explanation
    The quadriceps muscle that attaches to the anterior inferior iliac spine is the rectus femoris.

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  • Current Version
  • May 20, 2025
    Quiz Edited by
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  • Aug 05, 2009
    Quiz Created by
    Mtagudin

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