The relaxation of skeletal muscle relies on the activity of the ________, which decreases cytoplasmic calcium concentration.
A) Ca2+ATPase
B) dihydropyridine (DHP) receptor (L-type calcium channel)
C) ryanodine receptor
D) acetylcholine receptor
A) Ca2+ATPase
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The field of genetics deals only with disease.
Answer the following statement true (T) or false (F)
Your patient has a build-up of urea in her body. Which of the following statements most likely explains this problem?
A) Protein metabolism is inefficient. B) Bile can no longer be manufactured. C) The kidney is overly active. D) The liver is no longer producing clotting factors.
The structure of a lymph node can be described as
a. contain masses of only lymphocytes b. afferent vessels circulating lymph into the node on its convex surface c. efferent vessels circulating lymph out of the node on its convex surface d. being uncompartmentalized
Baldness
A. occurs only in men. B. is more common in men than in women. C. is not genetic. D. is related to estrogen levels. E. is related to levels of growth hormone.