The glossopharyngeal nerve provides motor function to the stylopharyngeus muscle. Located in the pharynx, which is the portion of your throat behind the nose and mouth, this muscle is involved in ...

Facial nerve paralysis indicates a significant problem with your facial nerves. If you lose the ability to smile, blink, or make other facial movements, you may have facial nerve paralysis.

The trochlear nerve, also known as cranial nerve 4 (CN IV), controls the superior oblique muscle in your eye. This muscle allows you to move your eyeball down and shift your gaze from side to side.

Bell's palsy is facial nerve disorder that causes weakness of the muscles on one side of the face. Its cause is unknown but most people make a full recovery within 8 to 12 weeks.

These are considered superficial facial muscles, and receive motor supply from branches of CN VII, the facial nerve. The muscles of mastication, although not forming the boundaries of the oral ...

The answer lies in a surprising blend of facial anatomy, ... smiles depend on cranial nerve VII, also known as the facial nerve, which sends signals from the brain to the muscles of facial ...

Hemifacial spasms happen when the muscles on either the left or right side of your face twitch without warning. This is caused by damage or irritation to the facial nerve, also known as the ...

When the facial nerve fires, the signal is directed to the ipsilateral facial muscles causing muscle contractions in different areas of the face on the same side. A competing hypothesis states that ...

Asymmetry of facial muscle movements may indicate a lesion. ... Kochhar A, Larian B, Azizzadeh B. Facial nerve and parotid gland anatomy. Otolaryngol Clin North Am 2016;49:273-284. Crossref.