Depressor supercilii muscle

The depressor supercilii is an eye muscle of the human body. 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.[1]

Depressor supercilii
Details
OriginMedial orbital rim
InsertionMedial aspect of bony orbit
NerveFacial nerve
ActionsDepression of eyebrow
Identifiers
Latinmusculus depressor supercilii
TA98A04.1.03.019
TA22072
FMA46798
Anatomical terms of muscle

On the other hand, many dermatologists, ophthalmologists, and plastic surgeons[2] 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.[2]

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.

See also

References

  1. biology-online.org
  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.
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