What does the temporal branch of the facial nerve do?

The temporal branch is the superior branch of the facial nerve. The nerve provides motor innervation to the frontalis muscle, corrugators, procerus and occasionally portions of the orbicularis oculi. Injury to this nerve during dissection will lead to brow asymmetry and brow ptosis and should be avoided at all cost.

What is Pitanguy’s line?

Several methods for delineating the FTB trajectory exist, the most widely known being Pitanguy’s Line, which is defined as running from 0.5 cm below the tragus to 1.5 cm above the lateral eyebrow.

How do you test the temporal branch of the facial nerve?

The more anterior branches supply the frontalis, the orbicularis oculi, and corrugator supercilii and muscles. To test the function of the temporal branches of the facial nerve, the patient is asked to frown and wrinkle his or her forehead.

What layer is the facial nerve located?

The fifth layer is the facial nerve, which is discussed in detail below.

What is the path of the facial nerve?

In the tympanic segment, the facial nerve runs through the tympanic cavity, medial to the incus . The pyramidal eminence is the second bend in the facial nerve, where the nerve runs downward as the mastoid segment.

What does the facial nerve innervate?

The main function of the facial nerve is motor control of all of the muscles of facial expression. It also innervates the posterior belly of the digastric muscle, the stylohyoid muscle, and the stapedius muscle of the middle ear.

What are the nerves of the face?

Trigeminal Nerve. The sensory innervation to the face comes from the trigeminal nerve which is the only cranial nerve that arises directly from the pons. Its three branches are the Ophthalmic (V1), Maxillary (V2) and Mandibular (V3). Each of those branches supplies the corresponding region on the face.

What is the 7th cranial nerve?

The 7th cranial nerve is mixed nerve containing both sensory and motor components. It emerges from the brainstem between the pons and the medulla, and controls the muscles of facial expression, and functions in the conveyance of taste sensations from the anterior two-thirds of the tongue and oral cavity.