Orbital Muscles
Bergman's Comprehensive Encyclopedia of Human Anatomic Variation, wiley, ss.207-211, 2016
- Yayın Türü: Kitapta Bölüm / Araştırma Kitabı
- Basım Tarihi: 2016
- Doi Numarası: 10.1002/9781118430309.ch22
- Yayınevi: wiley
- Sayfa Sayıları: ss.207-211
- Anahtar Kelimeler: inferior oblique muscle, levator palpebrae superiores muscles, orbital muscles, retractor glandulae lacrimalis, supernumerary rectus muscles
- Sağlık Bilimleri Üniversitesi Adresli: Hayır
Özet
Whether extraocular or extrinsic, eye muscles are a series of small muscles that arise from the preotic somites in the developing head. These muscles include the superior rectus, inferior rectus, lateral rectus, medial rectus, superior oblique, inferior oblique, and levator palpebrae superiores muscles. The extraocular muscles may sometimes be absent, double or supernumerary bellied, may have muscular bridges or slip/neuromuscular bundles between them, and may also have insertion anomalies or insertion variations. Researchers drew attention to the inferior oblique muscle variations rather than superior oblique muscle variations. The variation was a supernumerary rectus muscle lying in a sagittal orientation between the optic nerve and lateral rectus muscle and adjacent to the inferior rectus muscle. Recognizing the variations of the oblique muscles has been important in terms of strabismus operations. A fasciculus, the retractor glandulae lacrimalis, sometimes passes from levator palpebrae superioris to the lacrimal gland.