Histological Study to compare between Lens of the Zajel pigeons and Taphozous kachhensis eyes by using light microscope

Mohammed Etawi, Zainab

	Histological Study to compare between Lens of the Zajel pigeons and Taphozous kachhensis eyes by using light microscope
Al-Mustansiriyah Journal of Science
Article 1, Volume 23, Issue 1, 2012, Pages 1-10
Author
Zainab Mohammed Etawi
Abstract
The lens of the Zajel pigeons eye and Taphozous kachhensis were studied histologically with the use of light microscope. The results show that the lens of Zajel pigeons has high transparency and elasticity with nearly circular shape. The front surface was more flatten than the hind surface. The lens was surrounded by homogenous capsule with two zones the peripheral zone which called Annular pad but another zone it’s called lens body. The Lens also contain transparent fibers, thin and tall, expanding aray at spot of annular pad, but in spot of Lens body, it’s expanding equal to optical axis for eye. The Lens stabled in its spot by zonular fibers expanded from ciliary body in front of annular pad spot. As the study showed, that Lens of Taphozous kachhensis eye occupies nearly, half of measure for Length axis to eye-ball and distinguishes with increasing its convexity and it’s appeared hanging in its place by group of fibers formed zonula which its fibers stabled as a circular on the ciliary body and it is spherical shape. The Lens it be transparent and convex of two faces, and increase its convexity in back part which opposite to vitrous body, the Lens surround with(Homogenous capsule) rubber, it’s thick different according to location, and increase at front pole and edges. Stick with capsule zonular fibers, pass to ciliary body as a hanging tie, this system consider important in an operation which called(Adaptation) which allow to concentration on far and nearby things by change to bend of Lens.

Statistics Article View: 210 PDF Download: 42