NEET PG DENTAL EXAM

BRAIN

PONS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A patient came with complaints of pursed lips since this morning. It seems that the lips are pulled to the left and the right eyelid cannot be closed tightly. Where is the possible lesion?
A
Dextra cerebral cortex
B
Left cerebral cortex
C
Medulla oblongata dextra
D
pons sinistra
E
No. 7 on the right
Explanation: 

Detailed explanation-1: -Facial drooping can be caused by a disorder such as Bell’s palsy. This disorder is a mononeuropathy (involvement of a single nerve) that damages the seventh cranial (facial) nerve. The facial nerve controls movement of the muscles of the face. Drooping of the eyelid is called ptosis.

Detailed explanation-2: -Facial nerve palsy includes both paralysis (complete loss of function) and paresis (weakness) of the seventh cranial nerve (CN 7). CN 7 is a mixed nerve providing both sensory afferents and motor efferent fibers.

There is 1 question to complete.