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 | |
| 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 | |
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
- biology-online.org
- 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.
External links
- Illustration in Facial Action Coding System
- ent/134 at eMedicine - "Botox Injections for Hyperfunctional Facial Lines"
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