Calcium plays an essential role in all of the following except ________.
A. DNA synthesis
B. exocytosis
C. muscle contraction
D. blood clotting
E. communication among neurons
Answer: A
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Interleukin 1, interleukin 6 and tumor necrosis factor all function as endogenous pyrogens, which induce the development of a fever
Indicate whether the statement is true or false
When the stimulus intensity increases, ______
A) the number of action potentials increases B) the size of the action potential increases C) the size of the action potential decreases D) the number of action potentials decreases
The cardioregulatory center of the brain is located in the
A. hypothalamus. B. medulla oblongata. C. cerebellum. D. cerebrum. E. diencephalons.
When considering spatial summation of graded potentials, it is important to keep in mind
A) How far the potential may have traveled. B) The initial amplitude of the potential. C) The polarity of the potential. D) All of the above