Abstract
The extraocular muscles include the orbicularis oculi, levator palpebrae superioris, four rectus and two oblique muscles, totaling eight. The four rectus muscles have a common origin from an oval ring at the apex of the orbit called the annulus of Zinn, which encompasses the optic foramen at the back and the wider medial part of the superior orbital fissure. The ring has an upper and a lower tendon. The upper part supplies origin to part of the medial and lateral recti and the whole of the superior rectus. The lower part provides origin to part of the lateral and medial recti and the whole of the inferior rectus.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Suggested Reading
Parsons’ Diseases of the Eye, edn 16. Revised by Miller SJH. London: Churchill Livingstone; 1979. pp. 1–14; 545–60
Riordon-Eva P, Cunningham E (2011) Vaughan and Asbury’s general ophthalmology, edn 18. McGraw Hill, New York, pp 1–26
Trevor-Roper PD (1974) The eye and its disorders. Blackwell Scientific Publications, London, pp 26–44, 323–34
Wolff’s E (1976) Anatomy of the eye and orbit, edn 7. Revised by Warwick R. London: HK Lewis; 1976; pp. 1–29; 30–180D
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
Copyright information
© 2016 Springer International Publishing Switzerland
About this chapter
Cite this chapter
Ansari, M.W., Nadeem, A. (2016). Extraocular and Intraocular Muscles. In: Atlas of Ocular Anatomy. Springer, Cham. https://doi.org/10.1007/978-3-319-42781-2_4
Download citation
DOI: https://doi.org/10.1007/978-3-319-42781-2_4
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-42780-5
Online ISBN: 978-3-319-42781-2
eBook Packages: MedicineMedicine (R0)