Cranial nerve X

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Although the innervation of LVP by cranial nerve X is generally agreed upon in basic anatomy textbooks, identification of LVP motoneurons within the NA does not exclude innervation by cranial nerve IX.
Cranial nerve X is sensory and parasympathetic.
Nevertheless, it is interesting to know, for example, since cranial nerve X is involved both in sensation in the outer ear canal and pharynx/larynx, someone who got a critter/bug in his/her ear can actually cause none-stop coughing.
Cranial nerve X is called the vagus nerve; it has effects on visceral gut function and has the ability to slow the heart when stimulated through the parasympathetic nervous system.
Check them during the oral exam Test cranial nerve IX by touching the palatal arch with a tongue blade to elicit a gag reflex Ask the person to open his or her mouth and say "ah" Cranial nerve X is also tested by evaluating speech quality.

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