What is the auriculotemporal nerve?

The auriculotemporal nerve is a tributary of the mandibular division of cranial nerve five, the trigeminal nerve. It contains sensory, vasomotor, and parasympathetic fibers.

What branch is Auriculotemporal?

The auriculotemporal nerve is a branch of the mandibular division of the trigeminal nerve and supplies sensation to the tragus and helical crus.

What causes Auriculotemporal neuralgia?

Tenderness over the auriculotemporal nerve has been described, and the neuralgia can be triggered by pressure on the preauricular region. Local anesthetic blockade can completely resolve all these symptoms [ 1–4 ]. The auriculotemporal nerve is terminal branch of the trigeminal nerve.

How do you give an auriculotemporal nerve block?

The auriculotemporal nerve can be blocked by injecting local anesthetic solution above the posterior portion of the zygoma, anterior to the ear and behind the superficial temporal artery. The needle (27 gauge) is inserted anterior and superior to the tragus.

Is auriculotemporal nerve motor?

The auriculotemporal nerve is a branch of the mandibular nerve (V3) that runs with the superficial temporal artery and vein, and provides sensory innervation to various regions on the side of the head.

What is Supratrochlear?

The supratrochlear nerve (STN) is a branch of the frontal nerve and supplies sensory innervations to the bridge of the nose, medial part of the upper eyelid, and medial forehead.

What causes Frey’s syndrome?

Frey syndrome is a rare disorder that most often occurs as a result of surgery in the area near the parotid glands. The parotid glands are the largest salivary glands in the body located just below the ears on either side of the face.

Where does the trigeminal nerve exit the skull?

foramen rotundum
It exits the skull via the foramen rotundum and crosses the pterygopalatine fossa to enter the orbit through the inferior orbital fissure, where it becomes the infraorbital nerve. Before entering the foramen, it gives off a dural branch (middle meningeal nerve).

How long does trigeminal nerve block last?

The full effect is usually noticed after the soreness wears off about 3-5 days after the procedure. The length of time before symptoms reappear can vary widely, lasting only days for some people but weeks or months for others. Trigeminal nerve block is not usually a cure for trigeminal neuralgia and chronic migraines.

What is the Trochlea?

smooth articular surfaces (capitulum and trochlea), two depressions (fossae) that form part of the elbow joint, and two projections (epicondyles). The capitulum laterally articulates with the radius; the trochlea, a spool-shaped surface, articulates with the ulna.

What does it mean to have auriculotemporal syndrome?

Frey’s syndrome, also called gustatory sweating or auriculotemporal syndrome, is a rare disorder that comprises of facial sweating and flushing of the parotid region initiated by gustatory stimulus. [43], [44] This condition is attributed to direct damage of the auriculotemporal nerve. [45]

Where is the auriculotemporal nerve located in the head?

The auriculotemporal nerve is a branch of the mandibular nerve that provides sensation to several regions on the side of your head, including the jaw, ear, and scalp. For much of its course through the structures of your head and face, it runs along the superficial temporal artery and vein.­­­

What happens to the auriculotemporal nerve after a parotidectomy?

After a parotidectomy, the nerves from the Auriculotemporal Nerve that previously innervated the parotid gland can reattach to the sweat glands in the same region. The result is sweating along the cheek with the consumption of foods ( Frey’s syndrome ).

How is the auriculotemporal nerve divided in lingual Rami?

It then divided into the inferior alveolar and lingual rami, with the latter passing 3.5 mm medial to the condyle. The nerve can be injured if the operator is not cognizant of the intra-articular anatomy and perforates the drape at a distance of more than 35 mm from the tegument.