Which artery is not part of the cerebral arterial circle?
A) anterior communicating artery
B) anterior cerebral artery
C) posterior communicating artery
D) posterior cerebral artery
E) middle cerebral artery
E
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Helper T cells do all of the following except
A) trigger B-cell division, plasma cell maturation, and antibody production. B) provide a rapid response to a future exposure to the antigen. C) enhance production of memory and cytotoxic T cells. D) attract macrophages to the affected area. E) enhance nonspecific defenses.
Judy runs 50 miles a week. She and her husband have been trying to conceive for three years, with no luck. Her disturbed reproductive cycles and infertility are due to
A. increased synthesis of estrogens. B. decreased synthesis of estrogens. C. decreased secretion of adrenal androgens. D. increased secretion of adrenal androgens.
What surface groove separates the right and left ventricles?
A) interventricular septum B) interventricular sulcus C) interatrial septum D) atrioventricular sulcus
A hematocrit provides information on
A) blood type. B) clotting factors. C) formed elements abundance. D) plasma composition. E) sedimentation rate.