Blood flowing out of a capillary bed first enters structures called
A) arterial anastomoses.
B) venous valves.
C) arteriovenous anastomoses.
D) precapillary sphincters.
E) venules.
E) venules.
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This figure illustrates the microscopic anatomy of spongy bone. Which number indicates a central canal?
A. 1 B. 2 C. 4 D. 5 E. None of the choices is correct.
Ingesting large amounts of sodium bicarbonate can lead to ________.
A. metabolic alkalosis B. respiratory alkalosis C. metabolic acidosis D. respiratory acidosis E. None of the choices are correct.
During a cardiovascular examination, a patient has a resting heart rate of 65 beats/min and a blood pressure of 100/70 mm Hg in the supine position
In the upright position at steady state, the patient's heart rate is 74 beats/min and blood pressure is 105/70 mm Hg. One physiological change that occurred in the patient as a result of assuming an upright position is: A. diminished arteriolar resistance B. increased venous capacitance C. increased capillary filtration D. increased cardiac vagal tone E. increased cardiac sympathetic tone
The hormone __________ is secreted by the adrenal cortex and causes the kidneys to retain sodium.
Fill in the blank(s) with the appropriate word(s).