Multiple Choice
Which of the following statements is true regarding cardiac muscle?
A) Its main source of ATP production is glycogen.
B) The actin and myosin myofilaments are not arranged in sarcomeres.
C) Cardiac muscle preferentially metabolizes anaerobically.
D) There are specialized gap junctions in cardiac muscle not found in skeletal or smooth muscles.
E) Cardiac muscle goes into sustained contractions faster than skeletal muscle.
Correct Answer:
Verified
Correct Answer:
Verified
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Q48: The function of an atrium is to<br>A)
Q49: The heart pumps approximately _ liters of
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Q51: The volume of blood ejected from each
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Q54: The structure that permits blood flow from
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