Temporal branches of the facial nerve

Temporal branches of the facial nerve
Plan of the facial and intermediate nerves and their communication with other nerves (labeled at center bottom, sixth from bottom, as "Temporal")
The nerves of the scalp, face, and side of neck (temporal labeled at center, between eye and ear.)
Details
From	Facial nerve
Identifiers
Latin	rami temporales nervi facialis
TA98	A14.2.01.109
TA2	6302
FMA	53291
Anatomical terms of neuroanatomy [edit on Wikidata]

The temporal branches of the facial nerve (frontal branch of the facial nerve) crosses the zygomatic arch to the temporal region, supplying the auriculares anterior and superior, and joining with the zygomaticotemporal branch of the maxillary nerve, and with the auriculotemporal branch of the mandibular nerve.

The more anterior branches supply the frontalis, the orbicularis oculi, and corrugator supercilii, and join the supraorbital and lacrimal branches of the ophthalmic. The temporal branch acts as the efferent limb of the corneal reflex.

Anatomic location

The temporal branch of the facial nerve is typically found between the temporoparietal fascia (i.e., superficial temporal fascia) and temporal fascia (i.e., deep temporal fascia). This layer is also known as the innominate fascia.

There are several methods using anatomic landmarks that may be used to find the temporal branch of the facial nerve. One method is using Pitanguy's line, which is defined as running from 0.5 cm below the tragus to 1.5 cm above the lateral eyebrow.^[1] Another method is to recognize that the temporal branch runs between the lines from the earlobe to the hairline and from the earlobe to the lateral eyebrow.

Testing the temporal branches of the facial nerve

To test the function of the temporal branches of the facial nerve, a patient is asked to frown and wrinkle their forehead.

Additional images

• 
  Lateral head anatomy detail
• 
  Lateral head anatomy detail.Dissection the newborn
• 
  Lateral head anatomy detail.Facial nerve dissection.

External links

• Anatomy photo:23:06-0106 at the SUNY Downstate Medical Center - "Branches of Facial Nerve (CN VII)"
• lesson4 at The Anatomy Lesson by Wesley Norman (Georgetown University) (parotid3)
• cranialnerves at The Anatomy Lesson by Wesley Norman (Georgetown University) (VII)
• http://www.dartmouth.edu/~humananatomy/figures/chapter_47/47-5.HTM

References

This article incorporates text in the public domain from page 905 of the 20th edition of Gray's Anatomy (1918)

1. Green Sanderson, Kit; Conti, Alyssa; Colussi, Mariah; Connolly, Cara (2020-04-14). "A Simple Clinical Application for Locating the Frontotemporal Branch of the Facial Nerve Using the Zygomatic Arch and the Tragus". Aesthetic Surgery Journal. 40 (5): NP223 – NP227. doi:10.1093/asj/sjz186. ISSN 1527-330X. PMID 31254463.