What is the most important factor that increases blood flow through a tissue to meet that tissue's needs?
a. Vasoconstriction of arteries forces more blood to flow into the tissue.
b. Parasympathetic-induced vasodilation of capillaries within the tissue.
c. Cellular products cause local vasodilation.
d. Widespread venous vasoconstriction allows blood to dam up at the tissue level.
e. All except a
C
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When both the egg and the sperm unite, the process is called __________
Fill in the blank(s) with correct word
A disease that attacks and disables the myenteric plexus would
A) increase intestinal motility. B) decrease intestinal motility. C) increase gastric secretion. D) decrease gastric secretion. E) interfere with both intestinal motility and gastric secretion.
The figure illustrates a medial view of bones of the right foot. What does "A" represent?
A. calcaneus B. fibula C. metatarsals D. tibia E. talus
What cells produce testosterone?
A. seminiferous cells B. interstitial cells C. cumulus cells D. sustentacular cells E. spermatogonia