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MDiva
10-19-2005, 03:50 PM
Post tonsillectomy, a 9-year old girl has a loss of taste sensation on the posterior 2/3 of her tongue. The nerve that has been injured is the

a. lingual
b. chorda tympani
c. glossopharyngeal
d. hypoglossal
petarm
10-20-2005, 05:21 AM
it is C i.e. n. IX
petarm
10-20-2005, 05:22 AM
N.IX can be injured during tonsillectomy because it is near tonsilla palatina
MDiva
10-20-2005, 10:52 AM
The glossopharygeal n., CN IX, relays general sensory and taste sensation to the posterior 1/3 of the tongue. The anterior 2/3 portion is innervated by the lingual (general sensory) and chorda tympani (taste).
sarda
12-17-2006, 06:17 PM
Cccccccccccccccccccccccccccc Ix Nerve
fjv75
12-18-2006, 12:24 AM
C) CN IX Glossopharyngeal posterior 1/3 (taste) and anterior 2/3 CN VII Chorda Tympani (taste)