Which of these regulatory mechanisms would occur in response to a sudden increase in blood pressure?
A. a decrease in vasomotor tone
B. vasodilation of blood vessels
C. decrease in peripheral resistance
D. parasympathetic stimulation of the heart
E. All of these responses would be expected.
Ans: E. All of these responses would be expected.
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Blood banks dispose of blood that has low levels of bisphosphoglycerate. What would be the probable reason for doing so?
A. A decline in BPG level is accompanied by a decline in hemoglobin level. B. A low BPG level causes acidosis of blood. C. Erythrocytes low in BPG do not unload O2 very well. D. Erythrocytes low in BPG do not load O2 very well. E. Erythrocytes low in BPG do not unload CO2 very well.
Define obstetrical
What will be an ideal response?
The ability of the kidney to concentrate urine depends on
A. a high medullary concentration gradient. B. proximal convoluted tubule reabsorption. C. a low medullary concentration gradient. D. rapid removal of filtrate. E. osmosis.
Pepsinogen, a digestive enzyme, is secreted by the ________.
A) chief cells of the stomach B) parietal cells of the duodenum C) Brunner's glands D) goblet cells of the small intestine