Elevated blood pressure under resting conditions results in increased urinary output because
A. baroreceptors signal the hypothalamus to increase ADH secretion.
B. elevated blood pressure stimulates renin secretion.
C. the amount of angiotensin II formed is increased.
D. aldosterone levels increase.
E. baroreceptors signal the hypothalamus to decrease ADH secretion.
E
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Why is it possible to deliver more O2 to vigorously working cells without increasing respiration rate or cardiac output?
A. It isn't: a small decrease in PO2 has very little effect on hemoglobin unloading. B. Because once one molecule of O2 is bound to hemoglobin, the other molecules bind much more rapidly. C. Because between a PO2 of zero and a PO2 of 40, hemoglobin saturation changes very rapidly and a greater degree of unloading will occur with even small changes in PO2. D. Because CO2 released from the vigorously working cells enhances O2 binding to hemoglobin.
Which of the following functions would most likely be controlled by the representational hemisphere of the cerebrum?
A) Balancing your checkbook B) Answering this question C) Painting a picture D) Diagnosing a patient's disease E) Giving a speech
The infraspinatus fossa is a depression on the anterior surface of the scapula.
Answer the following statement true (T) or false (F)
The adrenal medulla
A. plays a role in the adaptation of the body for physical activity. B. has acetylcholine as its major secretory product. C. is stimulated by the parasympathetic nervous system. D. is the outer layer of the adrenal glands. E. decreases its secretions during stress.