Zygomaticus minor muscle
Citation, DOI, disclosures and article data
Citation:
MacManus D, Bell D, Kang O, Zygomaticus minor muscle. Reference article, Radiopaedia.org (Accessed on 08 Dec 2024) https://doi.org/10.53347/rID-64928
Permalink:
rID:
64928
Article created:
14 Dec 2018,
Daniel MacManus
Disclosures:
At the time the article was created Daniel MacManus had no recorded disclosures.
View Daniel MacManus's current disclosures
Last revised:
Disclosures:
At the time the article was last revised Daniel J Bell had no recorded disclosures.
View Daniel J Bell's current disclosures
Revisions:
4 times, by
3 contributors -
see full revision history and disclosures
Systems:
Sections:
Synonyms:
- Zygomaticus minor muscles
The zygomaticus minor muscle is a member of the buccolabial muscle group of the facial muscles. Together with the levator labii superioris alaeque nasi and levator labii superioris muscles it is one of the main elevators of the lip, exposing the maxillary teeth 1. Along with its other action of deepening and elevating the nasolabial furrow, it produces the facial expressions of smugness, smiling and expressing contempt or disdain.
On this page:
Summary
- origin: immediately behind the zygomaticomaxillary suture on the lateral surface of the zygomatic bone
- insertion: downwards and medially it inserts into the muscular substance of the upper lip. Superiorly, it is separated from levator labii superioris by a narrow pyramidal interval but inferiorly blends together.
Arterial supply
- superior labial branch of the facial artery
Venous drainage
Innervation
- zygomatic and buccal branches of the facial nerve
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Action
- elevates/curls the upper lip, exposing the maxillary teeth
- deepens and elevates the nasolabial furrow
See also
References
- 1. Susan Standring. Gray's Anatomy. (2015) ISBN: 9780702052309
Incoming Links
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