All of the following local chemical factors will cause vasodilation of arterioles, except
a. decreased K+.
b. increased CO2.
c. increased acid.
d. decreased O2.
e. histamine release.
A
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Which of the following types of primates are described as having nostrils that open to the side, have long tails for grasping, and have no cheek pouches?
a. apes c. Old World monkeys b. New World monkeys
Excess circulating quantities of which of the following nutrient molecules can ultimately be stored in adipose tissue as triglycerides?
a. fatty acids b. glucose c. amino acids d. Both a and b e. All of the above
If all of the calcium within a muscle fiber was removed, which of the following could still occur?
The heads of the myosin myofilaments bind to G-actin to form cross-bridges. An action potential that was produced at the neuromuscular junction is propagated along the sarcolemma. The troponin molecules bound to G actin molecules are released, causing tropomyosin to move. The heads of the myosin molecules return to their resting position and the recovery stroke occurs.
What is not true of epithelial cells?
A) They regenerate readily. B) They are bound together to form sheets. C) They are richly vascularized. D) They have a free surface.