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from | Encarta |  |
Cranial Nerves |
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| Whereas most major nerves emerge from the spinal cord, the 12 pairs of cranial nerves project directly from the brain. All but 1 pair relay motor or sensory information (or both); the tenth, or vagus nerve, affects visceral functions such as heart rate, vasoconstriction, and contraction of the smooth muscle found in the walls of the trachea, stomach, and intestine. | ||||||
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| Appears in these articles: | ||||||
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| Anatomy; Nervous System | ||||||
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