Water, sodium, and glucose all undergo tubular reabsorption, but urea does not.
Answer the following statement true (T) or false (F)
False
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The functional units of kidneys where blood is filtered and urine produced are called
A) pyramids. B) nephrons. C) calyces. D) lobules. E) lobes.
Sweat glands and arrector pili muscles are controlled
A. only by the parasympathetic nervous system. B. only by the sympathetic nervous system. C. by both the sympathetic and parasympathetic nervous systems. D. by both the autonomic and somatic nervous systems.
How many parallel rows of hair are in the organ of Corti?
a. one b. two c. three d. four e. five
Which of the following statements accurately describe events that occur as a result of a local potential reaching threshold?
A. Activation gates of Na+ ion channels begin to close. B. Inactivation gates of Na+ ion channels begin to open. C. A positive feedback cycle develops in which depolarization causes activation gates of Na+ ion channels to open. D. K+ ion channels begin to close. E. Inactivation gates of Na+ ion channels begin to open and a positive feedback cycle develops in which depolarization causes activation gates of Na+ ion channels to open.