Which of the following statements describes how muscles help maintain homeostasis?
A) The contractions of skeletal muscles pull on tendons and move elements of the skeleton.
B) Skeletal muscles are responsible for guarding the openings of the digestive and urinary tracts.
C) Skeletal muscles are responsible for the pumping action of the heart.
D) Skeletal muscles support the weight of some internal organs.
E) Skeletal muscle contractions help maintain body temperature.
Correct Answer:
Verified
Q4: The active sites on actin molecules are
Q5: Muscle fascicles are separated by
A) endomysium.
B) perimysium.
C)
Q6: The area between Z lines is the
A)
Q7: A muscle _ contains a sarcolemma, sarcoplasm,
Q8: The striated appearance of skeletal muscle results
Q10: The terminal cisternae are structural features of
Q11: Each myofibril consists of approximately _ sarcomeres.
A)
Q12: A layer of collagen fibers that surrounds
Q13: The area of the sarcomere that is
Q14: A sheath of connective tissue surrounding a
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