Have you tried to see if you can taste in the BACK of the left side of your tongue? The front and back of the tongue are innervated by different cranial nerves! (Taste for the anterior 2/3 is from the chorda tympani, a branch of the facial nerve, and the taste for the posterior 1/3 is the glossopharyngeal nerve, if you were curious!) You can still feel other sensations because that is again more nerves! Sensation of the anterior 2/3 is from the lingual nerve and sensation of the posterior 1/3 is the same as taste...glossopharyngeal. So if you can feel sensation in the back 1/3, you should also be able to taste...
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Have you tried to see if you can taste in the BACK of the left side of your tongue? The front and back of the tongue are innervated by different cranial nerves! (Taste for the anterior 2/3 is from the chorda tympani, a branch of the facial nerve, and the taste for the posterior 1/3 is the glossopharyngeal nerve, if you were curious!) You can still feel other sensations because that is again more nerves! Sensation of the anterior 2/3 is from the lingual nerve and sensation of the posterior 1/3 is the same as taste...glossopharyngeal. So if you can feel sensation in the back 1/3, you should also be able to taste...
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