The glial cell that helps to form the blood-brain barrier is the
A. astrocyte.
B. ependymal cell.
C. neurolemmocyte.
D. microglial cell.
E. oligodendrocyte.
A
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Describe the events that take place within the Golgi apparatus to a protein that is destined for secretion by the cell into the extracellular fluid
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Normal pH for blood is 7.35 to 7.45. Maintenance of the pH in this range is
A. not critical because extreme pH values do not affect enzyme function. B. not required. C. critical because enzymes work best within narrow ranges of pH. D. called denaturation. E. None of the choices are correct.
Infant respiratory distress syndrome occurs because premature infants lack the ability to produce _______, which _______.
A. mucus; traps bacteria B. cilia; clear mucus from the trachea C. surfactant; lowers surface tension D. alveoli; causes them to become hypoxic
The parasympathetic innervation from the pelvic splanchnic nerves is responsible for erection of the female clitoris and the male penis.
Answer the following statement true (T) or false (F)