Depressor supercilii muscle

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Depressor supercilii
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Details
Origin Medial orbital rim
Insertion Medial aspect of bony orbit
Nerve Facial nerve
Actions Depression of eyebrow
Identifiers
Latin musculus depressor supercilii
TA98 A04.1.03.019
TA2 2072
FMA 46798
Anatomical terms of muscle

The depressor supercilii is an eye muscle of the human body. Like the name suggests, the muscle depresses the eyebrow to form oblique lines. [1] The nature of this muscle is in some dispute. Few printed anatomies include it (Netter, et al.) and many authorities consider it to be part of the orbicularis oculi muscle. [2]

Contents

On the other hand, many dermatologists, ophthalmologists, and plastic surgeons [3] hold that the depressor supercilii is a distinct muscle and has a definite, individual effect on the movement of the eyebrow and skin of the glabella. [3]

Origin and insertion

The depressor supercilii originates on the medial orbital rim, near the lacrimal bone, and inserts on the medial aspect of the bony orbit, inferior to the corrugator supercilii. In some specimens it exhibits two heads and in others, only one. [4]

See also

References

  1. ↑ "Depressor supercilii - Knowledge and References". Taylor & Francis. Retrieved 2025-04-09.
  2. ↑ biology-online.org
  3. 1 2 Cook, Briggs E.; Lucarelli, Mark J.; Lemke, Bradley N. (2001). "Depressor Supercilii Muscle: Anatomy, Histology, and Cosmetic Implications". Ophthalmic Plastic & Reconstructive Surgery. 17 (6): 404–11. doi:10.1097/00002341-200111000-00004. PMID   11766019. INIST   13430064.
  4. ↑ Diogo, R.; Wood, B. A.; Aziz, M. A.; Burrows, A. (September 2009). "On the origin, homologies and evolution of primate facial muscles, with a particular focus on hominoids and a suggested unifying nomenclature for the facial muscles of the Mammalia". Journal of Anatomy. 215 (3): 300–319. doi:10.1111/j.1469-7580.2009.01111.x. ISSN   1469-7580. PMC   2750763 . PMID   19531159.
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