Human Physiology - Locomotion & Movement

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Q1. Which of the following is the primary muscle responsible for the flexion of the elbow joint? (2021)

Solution:

The biceps brachii is the primary muscle responsible for flexing the elbow joint.

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Q2. What type of muscle tissue is found in the heart? (2021)

Solution:

Cardiac muscle is the type of muscle tissue found in the heart, responsible for pumping blood.

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Q3. What is the primary energy source for muscle contraction? (2023)

Solution:

ATP (adenosine triphosphate) is the primary energy source for muscle contraction.

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Q4. What is the primary function of the skeletal system? (2021)

Solution:

The skeletal system serves multiple functions including movement, protection of vital organs, and mineral storage.

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Q5. What type of movement is primarily associated with the hip joint? (2019)

Solution:

The hip joint allows for flexion, extension, abduction, adduction, and rotation, making it a versatile joint.

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Q6. Which of the following structures is responsible for the production of red blood cells? (2019)

Solution:

Bone marrow is the primary site for the production of red blood cells in the human body.

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Q7. What is the primary role of synovial fluid in joints? (2023)

Solution:

Synovial fluid lubricates the joint, reducing friction and allowing for smooth movement.

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Q8. Which of the following is the primary muscle responsible for the movement of the arm at the shoulder joint? (2021)

Solution:

The deltoid muscle is the primary muscle responsible for the abduction of the arm at the shoulder joint.

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Q9. Which of the following structures is responsible for transmitting nerve impulses to muscle fibers? (2023)

Solution:

Motor neurons transmit nerve impulses to muscle fibers, initiating muscle contraction.

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Q10. What type of joint allows for rotational movement? (2019)

Solution:

Pivot joints allow for rotational movement, as seen in the neck.