Microscopic vessels that lie between arterioles and venules and function for exchange of materials (nutrients, gases, wastes) between the blood and body tissues are:
A) elastic arteries
B) muscular arteries
C) arterioles
D) capillaries
Answer: D) capillaries
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A postsynaptic potential is a graded potential that is the result of a neurotransmitter released into the synapse between two neurons
Indicate whether the statement is true or false
Hormone replacement therapy may be used to treat which of the following?
A. Target cell increased sensitivity B. Aging C. An increased number of receptors for a specific hormone D. Hypersecretion of a hormone E. Hyposecretion of a hormone
DiGeorge syndrome is a chromosomal disorder in which the thymus never develops/barely develops due to a deletion in a chromosome. Which of the following complications would you expect a child with DiGeorge syndrome to encounter?
A. The child will possess very few T lymphocytes and will be immunocompromised. B. The child will lose flow of lymph through the body, so recurrent edema will result. C. The child will not possess any B lymphocytes and will be immunocompromised. D. The space in which body fluid is filtered and pathogens are destroyed will be missing, so the child will be prone to life-threatening infections.
The cyclical process of contracting and relaxing of the precapillary sphincters is called ________.
Fill in the blank(s) with the appropriate word(s).