A 32 year-old woman visits her physician because she hasn’t been able to protrude and depress her tongue.
Which of the following is the most likely affected muscle?
A-Genioglossus muscle
B-Hypoglossus muscle
C-Styloglossus muscle
D-Palatoglossus muscle
Answer:
Genioglossus muscle is the only muscle that has a combined action. It protrudes and depress the tongue. Hypoglossus only depress the tongue.
Do not be confused with hypoglossal nerve which innervates all tongue muscles. Its paralysis leads to shift of the tongue to the same side of lesion.
The correct answer is A
I don’t think so but you have to confirm with the program director.
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