Procerus muscle
Last revised by Rohit Sharma on 28 Sep 2021
Citation, DOI, disclosures and article data
Citation:
Bell D, Sharma R, Hacking C, Procerus muscle. Reference article, Radiopaedia.org (Accessed on 12 Oct 2024) https://doi.org/10.53347/rID-64326
Permalink:
rID:
64326
Article created:
16 Nov 2018,
Daniel J Bell ◉
Disclosures:
At the time the article was created Daniel J Bell had no recorded disclosures.
View Daniel J Bell's current disclosures
Last revised:
28 Sep 2021,
Rohit Sharma ◉
Disclosures:
At the time the article was last revised Rohit Sharma had no recorded disclosures.
View Rohit Sharma's current disclosures
Revisions:
10 times, by
3 contributors -
see full revision history and disclosures
Systems:
Sections:
Synonyms:
- Pyramidalis nasi
- Procerus muscles
Procerus muscle (also known as pyramidalis nasi muscle) is one of the muscles of the nose and hence a facial muscle.
On this page:
Summary
- origin: descending fibers of frontalis muscle coalesce with procerus
- insertion: skin of the inferior glabella
- arterial supply: facial artery
- venous drainage: facial vein
- innervation: buccal nerve (branch of the facial nerve (VII))
- action:
Variant anatomy
Muscles of the nose vary in size between individuals and may be entirely absent 1.
History and etymology
Procerus is the Latin word meaning 'slender' 4.
Clinical importance
- patients with progressive supranuclear palsy may have the 'procerus sign', describing vertical wrinkling of the forehead, which is thought to be due to a focal dystonia of the procerus muscle 5,6
References
- 1. Chummy S. Sinnatamby. Last's Anatomy. (2018) ISBN: 9780702033940
- 2. Richard S. Snell. Clinical anatomy for medical students. (1992)
- 3. Gray, H. Anatomy of the Human Body. Philadelphia: Lea & Febiger, 1918; Bartleby.com, 2000. www.bartleby.com/107/
- 4. William Alexander Newman Dorland. Dorland's Illustrated Medical Dictionary. (2018) ISBN: 9781416023647
- 5. Bhattacharjee S. Procerus Sign: Mechanism, Clinical Usefulness, and Controversies. Ann Indian Acad Neurol. 2018;21(2):164-5. doi:10.4103/aian.AIAN_408_17
- 6. Romano S, Colosimo C. Procerus Sign in Progressive Supranuclear Palsy. Neurology. 2001;57(10):1928. doi:10.1212/WNL.57.10.1928
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