These are features of cardiac muscle fibers except
A) they depend almost exclusively on aerobic respiration.
B) they are rich in glycogen.
C) they have huge mitochondria.
D) they are very rich in myoglobin.
E) they have about the same endurance as skeletal muscle fibers.
Correct Answer:
Verified
Q26: The pacemaker potential is a result of
A)Na+
Q28: This figure shows an action potential in
Q29: This figure shows the internal anatomy of
Q30: Oxygen-poor blood passes through
A)the right AV (tricuspid)
Q32: The _ is the pacemaker that initiates
Q33: This figure shows the principal coronary blood
Q34: Cardiac muscle shares this feature with skeletal
Q36: This figure shows electrical activity of the
Q59: Any abnormal cardiac rhythm is called a(n)_.
A)
Q158: Opening and closing of the heart valves
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