During an action potential, depolarization is due to ____ ions ______ the cell.
Fill in the blank(s) with the appropriate word(s).
sodium; entering
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When two or more presynaptic neurons synapse with a single postsynaptic neuron in the CNS, a(n) _______ pathway is formed
A. convergent B. divergent C. reverberating D. somatic E. sensory
Blood is distributed from the surface of a bone to deeper central canals through channels known as
A) perforating canals. B) canaliculi. C) interstitial canals. D) concentric ducts. E) concentric canals.
Color blindness may be caused by Vitamin A deficiency, whereas night blindness is due to a deficiency of vitamin C
Indicate whether the statement is true or false
The facial and glossopharyngeal nerves
A. control the production of tears. B. are involved in the sense of smell. C. innervate the salivary glands. D. control movements of the tongue. E. carry pain from the teeth.