Which statement accurately describes the permeability to water of the cell membrane and the capillary wall?
A. Both the plasma membrane and the capillary wall are permeable to water.
B. The plasma membrane is permeable to water, but the capillary wall is not.
C. The plasma membrane is not permeable to water, but the capillary wall is.
D. Neither the plasma membrane nor the capillary wall is permeable to water.
A
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Neural stem cells in the CNS
A. can only form glial cells. B. can form new neurons throughout the CNS. C. have no known function. D. can form new neurons in only certain portions of the CNS such as the hippocampus. E. can migrate to the PNS as needed.
In comparison to arteries, how much do veins change with aging?
a. more than b. about the same c. less than
Peritubular capillaries tend to exhibit
A. low hydrostatic pressure and high colloid pressure. B. high hydrostatic pressure and high colloid pressure. C. high hydrostatic pressure and low colloid pressure. D. low hydrostatic pressure and low colloid pressure.
The micturition reflex is activated by the stretch of the bladder, which activates what?
A) parasympathetic afferents B) parasympathetic efferents C) somatic afferents D) sympathetic afferents E) stretch receptors