Plz explain this

[Harry Potter]

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Hi
Plz somebody explain the answer to this question.


If a person has normal musculature, but has difficulty swallowing, which nerves should be tested for function?

A. Hypoglossal and phrenic
B. Hypoglossal and splanchnic
C. Glossopharyngeal and vagus
D. Phrenic and vagus
E. Splanchnic and vagus


I thought answer is C b'coz they'r nvolved with the gag reflex & swallowing.
But the answer is E so plz explain Why?

Thanx in advance.

 

[vish2004]

hi,
u r right. its choice C and not E. The splanchnic nerves, which are part of the autonomic nervous system, enervate the pelvic and genital organs, regulating the emptying of the urinary bladder and the rectum as well as sexual functions . They do not innervate tthe upper part of GIT , hence choice C may be correct. Correct me if I am wrong.

Hi
Plz somebody explain the answer to this question.


If a person has normal musculature, but has difficulty swallowing, which nerves should be tested for function?

A. Hypoglossal and phrenic
B. Hypoglossal and splanchnic
C. Glossopharyngeal and vagus
D. Phrenic and vagus
E. Splanchnic and vagus


I thought answer is C b'coz they'r nvolved with the gag reflex & swallowing.
But the answer is E so plz explain Why?

Thanx in advance.

 

[pavi1230]

Well, The upper 2/3 of the esophagus contains striated muscle. It is derived from the pharyngeal arches and innervated by the vagus nerve (CN X). The lower 1/3 contains smooth muscle from splanchnic mesoderm and is innervated by the splanchnic plexus.The glossopharyngeal nerve or CN IX, functions in taste, swallowing, and salivation, as well as monitoring the activity of the carotid body.

So the answer is E.

 

[g3k]

Well, The upper 2/3 of the esophagus contains striated muscle. It is derived from the pharyngeal arches and innervated by the vagus nerve (CN X). The lower 1/3 contains smooth muscle from splanchnic mesoderm and is innervated by the splanchnic plexus.The glossopharyngeal nerve or CN IX, functions in taste, swallowing, and salivation, as well as monitoring the activity of the carotid body.

So the answer is E.

I think the answer is C ... Here is a website I found ...
http://www.csuchico.edu/~pmccaff/syllabi/SPPA342/342unit3.html

 

[ar78cx]

C is the right answer, according to kaplan review book.