Facial (VII) nerve is likely to be damaged in that injury which causes difficulty in tasting.
The seventh cranial nerve is the one that controls the face (CN VII). It is connected to the vestibulo cochlear nerve on the anterior side and the abducens nerve on the posterior side, indicating that it originates in the brain stem.
Facial nerve paralysis may cause sagging skin around the lips, eyes, and cheeks. This is one of the most noticeable symptoms. When a muscle loses the ability to contract, it entirely relaxes, and this causes the skin that is over the muscle to also relax.
Therefore, Facial (VII) nerve is likely to be damaged in that injury which causes difficulty in tasting.
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