Which of the labeled structures in the diagram of the trigeminothalamic pathway is the first-order neuron?
a) A
b) B
c) C
d) D
e) E
d
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Emission is defined as __________.
A) failure to achieve ejaculation. B) engorgement of the penis. C) movement of sperm into the urethra. D) movement of sperm out of the penis. E) loss of erection following orgasm.
Skeletal muscle produces body movement as well as maintains our ________ as we sit.
A. strength B. vasodilation C. vasoconstriction D. posture
Mutations in polypeptides called ________ that are produced by cytotoxic T cells could prevent T cells from destroying infected cells.
A. interferons B. antibodies C. histamines D. perforins
If insulin secretion is too low or its receptors are insensitive, all of the following effects are seen, except
A. high blood glucose levels. B. increased uptake of glucose to cells. C. increased thirst. D. polyuria. E. polyphagia.