Human Physiology - Locomotion & Movement

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Q1. Which muscle type is involuntary and found in the walls of internal organs? (2023)

Solution:

Smooth muscle is involuntary and is found in the walls of internal organs, facilitating movements such as peristalsis.

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Q2. What is the primary function of the Achilles tendon? (2022)

Solution:

The Achilles tendon connects the calf muscles to the heel bone, allowing for foot movement.

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Q3. What type of joint is the knee joint classified as? (2020)

Solution:

The knee joint is classified as a hinge joint, allowing movement primarily in one plane.

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Q4. What is the primary function of the skeletal system in locomotion? (2019)

Solution:

The primary function of the skeletal system in locomotion is to provide a framework for muscle attachment, enabling movement.

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Q5. What is the primary energy source for muscle contraction during short bursts of activity? (2022)

Solution:

Creatine phosphate provides a rapid source of energy for muscle contraction during short bursts of activity.

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Q6. What is the term for the ability of a muscle to respond to a stimulus? (2023)

Solution:

Excitability refers to the ability of a muscle to respond to a stimulus, such as a nerve impulse.

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Q7. Which structure connects muscle to bone? (2022)

Solution:

Tendons are the structures that connect muscles to bones, facilitating movement.

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Q8. 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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Q9. Which of the following structures is responsible for the storage of calcium ions in muscle cells? (2023)

Solution:

The sarcoplasmic reticulum is responsible for storing calcium ions, which are crucial for muscle contraction.

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Q10. Which of the following structures is responsible for transmitting the action potential in muscle fibers? (2023)

Solution:

T-tubules (transverse tubules) are responsible for transmitting the action potential deep into the muscle fiber.