MCQ IN MEDICINE

MEDICINE MCQ

NEUROLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Abducens nerve is the cranial nerve that arises from which part of the brainstem?
A
Diencephalon
B
Mesencephalon
C
Rostral medulla oblongata
D
Caudal medulla oblongata
Explanation: 

Detailed explanation-1: -Cranial nerves that exit the medulla are (from caudal to rostral) the hypoglossal (XII), accessory (XI), vagus (X), and glossopharyngeal (IX). The cranial nerves exiting at the pons–medulla junction are (from medial to lateral) the abducens (VI), facial (VII), and vestibulocochlear (VIII).

Detailed explanation-2: -The Vestibulocochlear nerve (cranial nerve VIII) – Arises from the brainstem directly lateral to the sensory root of the facial nerve. Cranial nerve VIII has two distinct portions, the vestibular, responsible for balance, and the cochlear, which is responsible for hearing.

Detailed explanation-3: -glossopharyngeal nerve (CN IX) vagus nerve (CN X) accessory nerve (CN XI) hypoglossal nerve (CN XII) 03-Apr-2023

There is 1 question to complete.