The structural and functional unit of the kidney is the:
A) nephron.
B) medulla.
C) renal cortex.
D) podocyte.
Answer: A) nephron.
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A. amino and R groups. B. monocarbonate and bicarbonate groups. C. amino and carboxyl groups. D. monohydrogen phosphate and dihydrogen phosphate groups.
Glutamate and nitric oxide are involved in the interaction between presynaptic and postsynaptic neurons during long-term potentiation
Indicate whether the statement is true or false
Sympathetic stimulation ____ heart rate and ____ the motility in the digestive tract
a. does not affect; decreases b. decreases; decreases c. decreases; increases d. increases; decreases e. increases; increases
Cells are bathed by fluid that is similar to plasma but is outside the blood vessels. This fluid is:
A) blood B) lymph C) intersitial fluid (extracellular fluid or ECF) D) none of these