A deficiency of ________ can cause pernicious anemia
A) vitamin B12
B) EPO secretion
C) iron
D) folic acid
E) vitamin C
A
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An example of a partial but sustained contraction is
A. muscle tone. B. eye blinking. C. a twitch. D. knee jerking.
Tim runs 5 to 8 miles a day. He has an enlarged heart and low heart rate and blood pressure. He most likely has
A. coronary artery disease. B. atherosclerosis. C. a very healthy cardiovascular system. D. an arrhythmia.
__________ cells may activate B cells while _________ cells inhibit the activity of B cells.
memory; cytotoxic helper T; suppressor T macrophages; microphages memory; plasma None of the Choices are corect
Which of the following hormone and cardiovascular effect is NOT correctly matched?
A. Atrial natriuretic homone -- lowers blood pressure B. Aldosterone -- lowers blood pressure C. Antidiuretic hormone -- raises blood pressure D. Epinephrine -- raises blood pressure