A major role of the urinary system is the excretion of wastes.
Answer the following statement true (T) or false (F)
True
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The vibration of the tympanic membrane varies in frequency according to the pitch of the sound it receives.
Answer the following statement true (T) or false (F)
Atherosclerosis involves a
A. sustained increase in blood flow that leads to decreases in venous resistance to keep blood pressure constant. B. sustained increase in resistance that leads to increases in arterial pressure to maintain adequate blood flow. C. sustained decrease in resistance that leads to decreases in arterial pressure to maintain adequate blood flow. D. sustained decrease in blood flow that leads to increases in arterial diameter to lower resistance and raise pressure. E. sustained increase in blood pressure that leads to compensatory vasodilation.
The risk of infection following a procedure is directly proportional to the degree of contamination
Indicate whether the statement is true or false
Basophils of the blood help to get defensive leukocytes to the site quickly by releasing an anticoagulant called ________ and a vasodilator called ________
A) prostaglandins; selectin B) heparin; histamine C) histamine; heparin D) selectin; prostaglandin E) bradykinin; histamine