What is the dialysis tubing simulating when demonstrating the function of the nephron?
A) Collecting duct
B) Renal pelvis
C) Filtration membrane
D) Blood flow
Answer: C
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The vestibulocochlear nerve is the only cranial nerve that doesn't exit the skull via an opening or foramen.
Answer the following statement true (T) or false (F)
Which of the following is true of the coronary arteries?
A) They branch off the pulmonary veins. B) They open and close in pulsation with the contraction and relaxation of the heart ventricles. C) Together they supply part of the heart muscle with oxygen. D) They originate at the base of the aorta and are the first branches off this vessel. E) None of the answers are correct.
A drop in body temperature triggers an internal reaction that ultimately leads to an increase in body temperature. This is called a __________ feedback loop.
Fill in the blank(s) with the appropriate word(s).
The airplane you are riding suddenly depressurizes at 10,000 feet in the air. This causes the PO2 of the airplane's air to drastically decrease. You pass out before you can put on your oxygen mask. After being exposed to these pressure conditions for a time, PO2 of the blood after oxygenation is only 60 mmHg. How saturated will hemoglobin be in these conditions (if the temperature remains around 38 degrees C)?
A. About 60% saturated B. About 90% saturated C. About 85% saturated D. About 100% saturated