Platysma muscle
Citation, DOI, disclosures and article data
Citation:
Chen M, Bell D, Hacking C, et al. Platysma muscle. Reference article, Radiopaedia.org (Accessed on 11 Mar 2025) https://radiopaedia.org/articles/48433
DOI:
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Permalink:
rID:
48433
Article created:
7 Oct 2016,
Ming Chen
Disclosures:
At the time the article was created Ming Chen had no recorded disclosures.
View Ming Chen's current disclosures
Last revised:
Disclosures:
At the time the article was last revised Daniel J Bell had no financial relationships to ineligible companies to disclose.
View Daniel J Bell's current disclosures
Revisions:
10 times, by
8 contributors -
see full revision history and disclosures
Systems:
Sections:
Synonyms:
- Platysma muscles
- Shaving muscle
- Shaving muscles
- Platysma
The platysma muscle (a.k.a. the shaving muscle) is a broad superficial fascial sheet of thin muscle covering the superior anterior chest, anterior and anterolateral neck and anterolateral mandibular region.
On this page:
Gross anatomy
The muscle consists of three parts: pars mandibularis, pars labialis and pars modiolaris.
- origin: the fascia of pectoralis major and deltoid muscles
- insertion: lower border of the mandible, the lower lip, modiolus and subcutaneous tissue of the lower face
Actions
- tenses the skin between the jaw and lateral neck
- assists in lowering the mandible
Arterial supply
- submental branch of the facial artery: commonest
- suprascapular artery
Venous drainage
- anteriorly: small venous tributaries, often via the submental vein, drain into the superior thyroid vein, anterior jugular vein, or facial vein of the internal jugular vein system 2,3
- posteriorly: external jugular vein 2,3
Innervation
- cervical branch of the facial nerve
References
- 1. Gray's Anatomy. Churchill Livingstone. (2011) ISBN:0443066841. Read it at Google Books - Find it at Amazon
- 2. Agarwal A, Schneck CD, Kelley DJ. Venous drainage of the platysma myocutaneous flap. (2004) Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery. 130 (3): 357-9. doi:10.1016/j.otohns.2003.12.005 - Pubmed
- 3. Uehara M, Helman JI, Lillie JH, Brooks SL. Blood supply to the platysma muscle flap: an anatomic study with clinical correlation. (2001) Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons. 59 (6): 642-6. doi:10.1053/joms.2001.23389 - Pubmed
Incoming Links
Articles:
- Lymph node levels of the neck
- Marginal mandibular nerve
- Superficial cervical fascia
- Transverse cervical nerve
- Submental artery
- Facial vein
- Digastric muscle
- Superficial layer of the deep cervical fascia
- External jugular vein
- Supraclavicular triangle
- Carotid triangle
- Supraclavicular nerves
- Superficial cervical plexus nerve block (ultrasound)
- Bailey classification of second branchial cleft cysts
- Masseter muscle
- Sistrunk procedure
- Sternocleidomastoid muscle
- Submandibular space
- Modiolus (mouth)
- Risorius muscle
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cranial vault
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sutures
- calvarial
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- frontozygomatic suture
- frontomaxillary suture
- frontolacrimal suture
- frontonasal suture
- temporozygomatic suture
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- parietotemporal suture (parietomastoid suture)
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facial bones
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deep spaces of the neck
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arterial supply
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common carotid artery
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common carotid artery
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arterial supply
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cranial nerves
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- optic nerve (CN II)
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trigeminal nerve (CN V) (mnemonic)
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vestibulocochlear nerve (CN VIII)
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