Water and NaCl reabsorbed from the loop of Henle directly reenter which blood vessels?
A. Collecting ducts
B. Efferent arterioles
C. Vasa recta
D. Cortical peritubular capillaries
E. Afferent arterioles
Answer: C
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Striated muscles are so-called because of a repeating pattern of light and dark bands. One repeating unit of the banding pattern is called a
A) sarcofibril. B) crossbridge. C) sarcomere. D) myofilament. E) myomere.
Which statement is correct?
a. Water reabsorption is under control of vasopressin throughout the length of the nephron. b. The ascending limb of the loop of Henle is always impermeable to water. c. Vasopressin makes the distal and collecting tubules impermeable to water. d. Fifteen percent of the filtered water osmotically follows the absorption of Na+ and other solutes in the proximal tubule. e. Water reabsorption is passive in the early portions of the nephron but is active in the distal portions of the nephron.
The figure is a process figure of the chemical synapse. What does "C" represent?
A. postsynaptic membrane B. synaptic cleft C. synaptic vesicle D. voltage-gated calcium channel E. presynaptic terminal
Olfactory receptor cells are modified bipolar neurons that bear olfactory hairs.
Answer the following statement true (T) or false (F)