Question

1. Which of the following is true about cranial nerves?

• CN X is involved in elevation of the velum
• The phrenic nerve housed between vertebrae T3 to T5 innervates the diaphragm
• The cell body of a cranial nerve is called a neuron
• CN XII innervates the contralateral side of the tongue

Answer 1

Cranial nerve X is involved in the elevation of the velum is true about cranial nerves.

Answer - CN X is involved in the elevation of the velum

Cranial nerve X that is involved in the elevation of the velum(soft palate), Elevation of velum is controlled by levator veli palatini muscle. levator veli palatini muscle is supplied by Cranial nerve X(Vagus Nerve).

Other options are wrong because

• The phrenic nerve housed between vertebrae T3 to T5 innervates the diaphragm is wrong because the Phrenic nerve housed between C3 - C5 spinal nerve.
• The cell body of a cranial nerve is called a neuron is a false statement.
• corticobulbar fibers innervates the contralateral side of the tongue.