EVERYDAY SCIENCE

SCIENCE

NERVOUS SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The hypoglossal nerves are the ____ of the spinal nerves.
A
First pair
B
Second pair
C
Third pair
D
Fourth pair
Explanation: 

Detailed explanation-1: -The hypoglossal nerve is one of the 12 cranial nerves arising from the brain. It’s a paired nerve, and you have two-left and right. Together, the two hypoglossal nerves control the muscles of the tongue. Your tongue moves food around in your mouth and helps in chewing it.

Detailed explanation-2: -Hypoglossal nerves are part of a group of cranial nerves homologous to ventral roots of spinal nerves and originate from the somatic efferent column of the brainstem.

Detailed explanation-3: -In total, there are 31 pairs of spinal nerves grouped regionally by spinal region. More specifically, there are eight cervical nerve pairs (C1-C8), twelve thoracic nerve pairs (T1-T12), five lumbar nerve pairs (L1-L5), 5 sacral (S1-S5), and a single coccygeal nerve pair.

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