Peyer's patches are found in the submucosa of the distal end of the small intestine
Indicate whether the statement is true or false
TRUE
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The velocity of blood flow in capillaries
a. is greater than that for arterioles. b. is greater than that for veins. c. is slow enough to favor adequate exchange. d. both (a) and (b) above. e. both (a) and (c) above.
Where is glycine released?
A. At the diaphragm B. In the PNS C. From the motor neurons innervating skeletal muscles D. In the CNS
How do the absorptive and postabsorptive states maintain normal blood glucose levels?
A) During the absorptive state, insulin stimulates glucose uptake by cells and during the postabsorptive state, glucagon stimulates the breakdown of glycogen to form glucose. B) During the absorptive state, glucagon stimulates glucose uptake by cells and during the postabsorptive state, insulin stimulates the breakdown of glycogen to form glucose. C) During the absorptive state, insulin stimulates the breakdown of glycogen to form glucose and during the postabsorptive state, glucagon stimulates glucose uptake by cells. D) During the absorptive state, glucagon stimulates the breakdown of glycogen to form glucose and during the postabsorptive state, insulin stimulates glucose uptake by cells.
Correction of hypoxemia is regulated by ________
A) an enzymatic amplification B) a cascade effect C) a self-amplifying mechanism D) a positive feedback loop E) a negative feedback loop