MUSCLE PHYSIOLOGY

Detailed explanation-1: -The eye is made up of three coats, which enclose the optically clear aqueous humour, lens, and vitreous body. The outermost coat consists of the cornea and the sclera; the middle coat contains the main blood supply to the eye and consists, from the back forward, of the choroid, the ciliary body, and the iris.

Detailed explanation-2: -The internal structures of the eye consist of three layers of tissue arranged concentrically: The sclera and cornea make up the exterior layers. The uvea is the vascular layer in the middle, subdivided into the iris, ciliary body, and choroid. The retina constitutes the innermost layer and is made up of nervous tissue.

Detailed explanation-3: -Pupil: The pupil is the opening at the center of the iris through which light passes. The iris adjusts the size of the pupil to control the amount of light that enters the eye.

Detailed explanation-4: -LENS: Behind the pupil is the lens, a clear, curved structure that focuses light rays that enter through the pupil, making an image on the retina. It is flexible & elastic allowing you to focus on objects and people that are either nearby or at a distance.