USMLE Forum Archives - USMLE Step 1 - NEUROANATOMY
NEUROANATOMY
drspleen - 03-16-11 00:32
After being involved in a motor vehicle accident, a woman is unable to stick her tongue straight out. Instead, the tongue always deviates to the left. Which of the following muscles is least likely involved in her condition?
* A. Hyoglossus
* B. Styloglossus
* C. Intrinsic muscles of the tongue
* D. Genioglossus
* E. Palatoglossus
drspleen - 03-16-11 00:32
After being involved in a motor vehicle accident, a woman is unable to stick her tongue straight out. Instead, the tongue always deviates to the left. Which of the following muscles is least likely involved in her condition?
* A. Hyoglossus
* B. Styloglossus
* C. Intrinsic muscles of the tongue
* D. Genioglossus
* E. Palatoglossus
The correct answer and explanation will be available after you answer.
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#4
Re: NEUROANATOMY babbu5508 - 03-16-11 16:06 My answer is: e.
the palatoglossus muscle Elevates posterior tongue, closes the oropharyngeal isthmus, and aids initiation of swallowing.
#5
Re: NEUROANATOMY
drspleen - 03-21-11 19:01 The patient has a lesion of her hypoglossal nerve. The hypoglossal nerve supplies motor innervation for all muscles of the tongue, except the palatoglossus, which is innervated by the vagus nerve (cranial nerve X).
#7
Re: NEUROANATOMY sudha2015 - 03-22-11 01:14 My answer is: e.
After being involved in a motor vehicle accident, a woman is unable to stick her tongue straight out. Instead, the tongue always deviates to the left
#8
Re: NEUROANATOMY drspleen - 03-22-11 07:28 The patient has a lesion of her hypoglossal nerve. The hypoglossal nerve supplies motor innervation for all muscles of the tongue, except the palatoglossus, which is innervated by the vagus nerve (cranial nerve X).
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