Which of the following muscles is not a muscle that moves the upper extremities?
a. biceps brachii
b. triceps brachii
c. latissimus dorsi
d. rectus abdominis
d. rectus abdominis
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During isovolumetric contraction,
a. rapid filling of the ventricles occurs b. no blood enters or leaves the ventricles c. the maximum volume of blood is ejected d. the maximum rate of ejection occurs e. Both a and b occur
Identify the gland that produces insulin and glucagon.
A.)pancreas B.)thyroid C.)parathyroid D.)hypothalamus
A disease of the arteries in which cholesterol-containing masses accumulate on the inside of arterial walls is called ____________________
Fill in the blank(s) with correct word
Which of the following does NOT correctly describe cardiac muscle cells?
A. They are arranged in layers surrounding hollow cavities in the heart. B. They are much shorter than skeletal muscle fibers, and generally have a single nucleus. C. Their membranes are depolarized initially by the influx of sodium ions. D. They depolarize prior to contraction. E. They can contract in the absence of external calcium.