Why does efficiency of pulmonary ventilation and pulmonary circulation occur?
a. the surface area of the respiratory membrane is increased
b. blood flow and air flow are coordinated
c. distances involved in gas exchange are small
d. the gases are liquid soluble
Answer: b. blood flow and air flow are coordinated
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What three elements form the filtration membrane?
A) intraglomerular mesangial cells, afferent arteriole, and efferent arteriole B) visceral layer of the glomerular capsule, parietal layer of the glomerular capsule, and the macula densa C) macula densa, extraglomerular mesangial cells, juxtaglomerular cells D) glomerular capsule, fenestrated endothelium, and intraglomerular mesangial cells E) fenestrated endothelium, basement membrane, and foot processes of the podocyte
Interferons are secreted in response to bacterial infections
Indicate whether the statement is true or false
_______ nerves are composed of preganglionic sympathetic axons that did not synapse in a sympathetic ganglion
Fill in the blank with correct word.