MICROANATOMY

MUSCLE NERVE CARTILAGE BONE

PERIPHERAL NERVE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
called the “wanderer, “ this tenth cranial nerve wanders throughout the abdominopelvic cavity, innervating many of the organs
A
vestibulocochlear
B
oculomotor
C
hypoglossal
D
vagus
Explanation: 

Detailed explanation-1: -The vagus nerve is the longest of the cranial nerve. Its name is derived from Latin meaning “wandering". True to its name the vagus nerve wanders from the brain stem through organs in the neck, thorax and abdomen.

Detailed explanation-2: -The vagus nerve (cranial nerve [CN] X) is the longest cranial nerve in the body, containing both motor and sensory functions in both the afferent and efferent regards.

Detailed explanation-3: -vagus nerve, also called X cranial nerve or 10th cranial nerve, longest and most complex of the cranial nerves. The vagus nerve runs from the brain through the face and thorax to the abdomen. It is a mixed nerve that contains parasympathetic fibres.

Detailed explanation-4: -It is called “vagus” as it is a vagrant or wandering nerve going down to the abdomen. It is appropriately called the tenth cranial nerve as it is the tenth pair of nerves to emerge from the brain (in order of exiting cranial nerves from the front of the brain to the back).

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