Astrocytes
a. induce formation of the blood-brain barrier
b. are important in the repair of brain injuries and in neural scar formation
c. take up excess K+ from the brain ECF
d. physically support neurons
e. perform all of the above functions
E
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a. size b. shape c. age d. chromosome number
The function of the paranasal sinuses is to
A. act as a resonating chamber. B. produce mucus. C. reduce the weight of the skull. D. influence the quality of the voice. E. All of these are functions of the paranasal sinuses.
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Which cranial nerves have motor functions only?
A) oculomotor, trochlear, abducens, accessory, and hypoglossal nerves B) olfactory, optic, oculomotor, and trochlear nerves C) vestibulocochlear, glossopharyngeal, and vagus nerves D) trochlear, trigeminal, and facial nerves E) oculomotor, trigeminal, abducens, facial, vagus, and accessory nerves