Wednesday, April 27, 2016

Sheep Eye Dissection


In class today we dissected a sheep's eye. We dissected a sheep's eye because their eyes are closely realated to human eyes. The Anatomy of the eye is like this... 
Basic terminology of the sheep eye
The bottom part of the eye hold the lens and retina and the upper part of the eye has the caliary body and optic nerve
Here in my hand is the sheep eye. The gray hazy object in the center is the cornea and is hazy because it is no longer alive. If this sheep's eye were part of a live sheep it would not be hazy.


In this lab we learned about how the eye also functions. Light rays enter the eye through the cornea. Then the cornea's bends the light rays in a way that they pass through the pupil the opening in the center of the iris through which light enters the eye. The iris then works like a shutter in a camera capturing everything witnessed by the eye itself. The muscle on the outside of the eye and the fat help protect it as well. 


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