Marginal mandibular branch of facial nerve

Marginal mandibular branch of facial nerve
Nerve: Marginal mandibular branch of facial nerve
Plan of the facial and intermediate nerves and their communication with other nerves. (Labeled at center bottom, second from bottom, as "Mandibular".)
The nerves of the scalp, face, and side of neck.
Latin ramus marginalis mandibularis nervi facialis
Gray's subject #202 905
From facial nerve

The marginal mandibular branch of facial nerve passes forward beneath the Platysma and Triangularis, supplying the muscles of the lower lip and chin, and communicating with the mental branch of the inferior alveolar nerve.

Contents

Muscles innervated [1]

Depressor labii inferioris- lowers bottom lip down and laterally. Origin: Anterior part of oblique line of mandible. Insertion: Lower lip at midline, blends with musle from opposite side.

Depressor anguli oris (Triangularis) - lowers corner of the mouth down and laterally. Origin: Oblique line of mandible below canine, premolar, and first molar teeth. Insertion: Skin at the corner of mouth and blending with orbicularis oris.

Mentalis - raises and protrudes lower lip as it wrinkles skin on chin. Origin: Mandible inferior to incisor teeth. Insertion: Skin of chin

Clinical significance

The marginal mandibular nerve may be injured during surgery in the neck region, especially during excision of the submandibular salivary gland or during neck dissections.

Additional images

References

  1. ^ Drake, Richard (2010). Gray's Anatomy of students. Philadelphia: Churchill Livingstone elseveier. pp. 855-866. ISBN 9780443069529. 

External links

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.



Wikimedia Foundation. 2010.

Игры ⚽ Поможем сделать НИР

Look at other dictionaries:

  • Facial nerve — Nerve: Facial nerve Cranial nerve VII The nerves of the scalp, face, and side of neck …   Wikipedia

  • Mandibular nerve — Nerve: Mandibular nerve Mandibular division of the trigeminal nerve. Mandibular di …   Wikipedia

  • branch — An offshoot; in anatomy, one of the primary divisions of a nerve or blood vessel. A b.. See ramus, artery, nerve, vein. SYN: ramus (1) [TA]. accessory meningeal b. SYN: pterygomeningeal artery …   Medical dictionary

  • supramaxillary nerve — noun 1. : the marginal mandibular branch of the facial nerve extending along the lower jaw and distributed to the muscles of the lower lip and chin 2. : the maxillary division of the trigeminal nerve …   Useful english dictionary

  • Ramus — In anatomy, a branch, such as a branch of a blood vessel or nerve. For example, the ramus acetabularis arteriae circumflexae femoris medialis is the branch of an artery that goes to the socket of the hip joint. The plural of ramus is rami. * * *… …   Medical dictionary

  • List of human nerves — * Accessory nerve * Accessory obturator nerve * Alderman s nerve * Anococcygeal nerve * Ansa cervicalis * Anterior interosseous nerve * Anterior superior alveolar nerve * Aortic plexus * Auerbach s plexus * Auriculotemporal nerve * Axillary nerve …   Wikipedia

  • ramus marginalis mandibularis nervi facialis — [TA] marginal mandibular branch of facial nerve: a branch of the facial nerve that runs forward from the front of the parotid gland along the border of the mandible, deep to the platysma and depressor anguli oris muscles, supplying the latter and …   Medical dictionary

  • Черепные нервы — Обонятельный нерв (n. olfactorius) (I пара) относится к нервам специальной чувствительности. Начинается от обонятельных рецепторов слизистой оболочки полости носа в верхней носовой раковине. Представляет собой 15 20 тонких нервных нитей,… …   Атлас анатомии человека

  • Cherubism — Classification and external resources Facial appearance of 37 year old woman diagnosed with cherubism. ICD 10 K …   Wikipedia

  • Artery — A vessel that carries blood that is high in oxygen content away from the heart to the farthest reaches of the body. Since blood in arteries is usually full of oxygen, the hemoglobin in the red blood cells is oxygenated. The resultant form of… …   Medical dictionary

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”