The condition of shock is an example of failure of homeostatic mechanisms to compensate when one or more parts of the reflex control system are damaged.
Answer the following statement true (T) or false (F)
True
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The zona reticularis of the adrenal cortex produces
A) androgens. B) glucocorticoids. C) mineralocorticoids. D) epinephrine. E) norepinephrine.
The exhaustion phase of the general adaptation syndrome (GAS) is characterized by
A) failure of electrolyte balance. B) an increasing ability to produce glucose from glycogen. C) increased pumping effectiveness of the heart. D) a sharp increase in motivation and energy. E) an increase in urine output.
What pH value represents a solution that releases 10 times more hydrogen ions than a pH of 7?
A) pH 8 B) pH 5 C) pH 4 D) pH 6
In people who stand for long periods, blood tends to pool in the lower limbs and this may result in varicose veins. Varicose veins are caused by
a) an aneurysm or weak point in an artery. b) an aneurysm or weak point in a vein. c) failure of the venous valves. d) failure of the lymphatic valves. e) a ruptured aneurysm in a vein.