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The posterior segment is the back five-sixths [8] of the eye that includes the anterior hyaloid membrane and all of the optical structures behind it: the vitreous humor, retina, choroid, and optic nerve. [12] The radii of the anterior and posterior sections are 8 mm and 12 mm, respectively. The point of junction is called the limbus.
In the anatomy of the eye, the conjunctiva (pl.: conjunctivae) is a thin mucous membrane that lines the inside of the eyelids and covers the sclera (the white of the eye). [1] It is composed of non-keratinized, stratified squamous epithelium with goblet cells, stratified columnar epithelium and stratified cuboidal epithelium (depending on the ...
In order, along the optic axis, the optical components consist of a first lens (the cornea—the clear part of the eye) that accounts for most of the optical power of the eye and accomplishes most of the focusing of light from the outside world; then an aperture (the pupil) in a diaphragm (the iris—the coloured part of the eye) that controls ...
For instance, yellow is a virtual mixture of red and green lines next to each other. White is actually all three colors next to each other!" #10 Photochrom Print By Photoglob Zürich, Between 1890 ...
The thickness of the sclera varies from 1 mm at the posterior pole to 0.3 mm just behind the insertions of the four rectus muscles. The sclera's blood vessels are mainly on the surface. Along with the vessels of the conjunctiva (which is a thin layer covering the sclera), those in the episclera render the inflamed eye bright red. [6]
[3] [4] [5] The second single from the album, "Down Under", was released in November and was a reworked version of the B-side to their debut single, "Keypunch Operator", from the previous year. [3] " Down Under" was co-written by Hay and Strykert, [ 9 ] and became the group's first number-one hit in December – which stayed at the top for six ...
Currently, the sitewide event gives an extra 25% off everything when you use the code SITEWIDE, dropping some of the most famous Kate Spade styles below $100.This sale is an extension of last ...
Justin Bieber, Darren Criss, John Legend and Tyler Blackburn are among the male stars who have donned their birthday suits in nude social media pictures.