![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/2/28/Gray872.png/640px-Gray872.png&w=640&q=50)
Ciliary muscle
Eye muscle which is used for focussing / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about Ciliaris?
Summarize this article for a 10 year old
SHOW ALL QUESTIONS
The ciliary muscle is an intrinsic muscle of the eye formed as a ring of smooth muscle[3][4] in the eye's middle layer, uvea (vascular layer). It controls accommodation for viewing objects at varying distances and regulates the flow of aqueous humor into Schlemm's canal. It also changes the shape of the lens within the eye but not the size of the pupil[5] which is carried out by the sphincter pupillae muscle and dilator pupillae.
Quick Facts Details, Pronunciation ...
Ciliary muscle | |
---|---|
![]() | |
Details | |
Pronunciation | UK: /ˈsɪliəri/, US: /ˈsɪliɛri/[1] |
Origin | 1) longitudinal fibers → scleral spur; 2) circular fibers → encircle root of iris[2] |
Insertion | 1) longitudinal fibers → ciliary process, 2) circular fibers → encircle root of iris[2] |
Artery | Long posterior ciliary arteries |
Vein | Vorticose vein |
Nerve | Short ciliary Parasympathetic fibers in the oculomotor nerve (CN-III) synapse in the ciliary ganglion. Parasympathetic postganglionic fibers from the ciliary ganglion travel through short ciliary nerves into the ocular globe. |
Actions | 1) Accommodation, 2) regulation of trabecular meshwork pore sizes |
Identifiers | |
Latin | musculus ciliaris |
TA98 | A15.2.03.014 |
TA2 | 6770 |
FMA | 49151 |
Anatomical terms of muscle |
Close