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12 Questions

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Muscle Types and Functions

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Questions and Answers

What is the primary function of satellite cells in muscle growth and repair?

To fuse with myoblasts to form myotubes

To provide structural support to the muscle fibers

To aid in muscle growth and repair after exercise or trauma (correct)

To increase the number of mitochondria in muscle cells

What is the characteristic of muscle fibers that allows for efficient energy generation?

Multinucleated structure

Connective tissue surrounding individual fibers

Cylindrical shape

Large number of mitochondria (correct)

During embryonic development, what is the term for individual muscle cells that will eventually fuse to form myotubes?

Myofibrils

Myoblasts (correct)

Myotubes

Muscle fibers

What is the term for the connective tissue that surrounds individual muscle fibers?

Endomysium Signup and view all the answers

What is the resulting structure formed when multiple myotubes fuse together?

Muscle fiber Signup and view all the answers

What is the characteristic of muscle fibers that allows them to span the entire length of the muscle?

Relatively large and long shape Signup and view all the answers

What is the primary function of muscles in the human body?

to contract for purposeful movement, manipulation of external objects, and propulsion of contents through hollow internal organs Signup and view all the answers

What type of muscle is characterized by the presence of dark and light bands?

Cardiac and skeletal muscle Signup and view all the answers

What is the primary difference between skeletal and smooth muscles based on their location?

Skeletal muscles are connected to bones, while smooth muscles are found in visceral organs Signup and view all the answers

Which type of muscle is innervated by neurons from the autonomic nervous system?

Smooth muscle and cardiac muscle Signup and view all the answers

What is the primary difference between striated and unstriated muscles?

Striated muscles have dark and light bands, while unstriated muscles do not Signup and view all the answers

What is the main reason why men have more muscle mass than women?

Testosterone helps to build muscle mass, and men have more testosterone Signup and view all the answers