Linggo, Enero 26, 2014

Senses: Vision (Cow's Eye)

                The visual system consists of the eyes, accessory structures and sensory neurons. We obtain much of our information about many things through the visual system. Each parts of the eye has its functions.

                There are also functions of the eye like the light refraction and focusing Images on the retina. The important characteristic of light is that it can be bended or refracted. Light that passes through a concave surface diverges while light passing through a convex surface surges. The converging light rays cross at the focal point and are said to be focused.

                The activity that we did in vision is the dissection of the cow’s eye. The cow’s eye is somehow similar to the human eye. In dissecting the eye, we saw the different parts of it like the optic nerve, pupil, lens, cornea and many more. We also used the lens of the cow’s eye and placed it on a paper with letters. When we placed it, the letters or the text became big and the lens of the cow looks like a magnifying lens.

Here are some pictures from the activity:





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