Talk:Ciliary muscle

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The[edit]

The link to accommodation on this page is to a discussion of the religious concept - does anyone have a correct link?

B receptors[edit]

I read in a book that there are beta adrenergic receptors which cause dialation of the ciliary muscle for far vision. and then I saw another paper saying something similar but i could not read the entire paper without buying. 207.151.233.38 (talk) 01:30, 7 April 2008 (UTC)

http://www.iovs.org/cgi/content/abstract/28/3/420
check out the abstract. Is it saying there are B-adrenergic receptors in the ciliary muscle? 207.151.233.38 (talk) 02:12, 7 April 2008 (UTC)

B receptors[edit]

Relationship of beta receptors to aqueous formation would be a useful addition. — Preceding unsigned comment added by 172.11.235.88 (talk) 03:40, 10 March 2014 (UTC)

Longitudinal, Circular and Radial fibers of the Ciliary Muscle[edit]

The ciliary muscle fibers have atleast three different orientations, each one having a different function: 1) Contraction and relaxation of the circular muscle fibers cause thickening and flattening of the lense shape, respectively while 2) contraction and relaxation of the longitudinal fibers, which insert into the trabecular meshwork in the anterior chamber of the eye, cause an increase and decrease in the meshwork pore size, respectively, facilitating and impeding aqueous humour flow into the canal of Schlemm. This should be stated in the article to clarify the information therein. The information comes from Vaughan & Asbury's General Ophthalmology, 17th Edition by Paul Riordan-Eva and John P. Whitcher.--Tarquilu (talk) 15:57, 17 July 2008 (UTC)

I think tarquilu said it more gracefully than the current rendition in the article - is this a quote above? Tkjazzer (talk) 22:28, 5 July 2009 (UTC)
The statements above are a summary of the information found in the "General Ophthalmology" text. I did not find the function of the radial ciliary muscle fibers, however. Tarquilu (talk) 00:02, 1 October 2009 (UTC)

Inaccurate statement on embryological origin[edit]

The statement "The ciliary muscle develops from the mesoderm within the choroid[4] and is considered a cranial neural crest derivative." is necessarily incorrect. If the ciliary muscle is a cranial neural crest derivative, which I believe it is, then it cannot develop from mesoderm. The neural crest is an ectodermal derivative. I suggest that you modify this sentence as follows: "The ciliary muscle develops from the mesenchyme within the choroid[4] and is considered a cranial neural crest derivative.". The term "mesenchyme" does not point to a specific germ layer but rather to a type of histological structure, and can be either of mesodermal origin, in a majority of cases, or of ectodermal origin, in the case of neural crest derivatives. — Preceding unsigned comment added by 213.203.132.68 (talk) 21:53, 20 April 2015 (UTC)

Thanks for pointing this out, IP. Wikipedia is made up of volunteer editors just like yourself who make these edits. I'd fully support you making this change (and even creating an account while you're at it!). Cheers, --Tom (LT) (talk) 06:45, 21 April 2015 (UTC)