The diagram below shows the structure of the eye. Choose words from the list below to label the parts A, B, C and D (ciliary muscles, pupil, retina, cornea, iris, optic nerve).

The figure below shows the labeled diagram.


A. Retina: Is a transparent, jelly-like mass located behind the lens. It acts as a ‘suspension’ for the lens so that the delicate lens is not damaged. It helps to maintain the shape of the posterior chamber of the eyeball.


B. Cornea: Helps to maintain the shape of the anterior chamber of the eyeball


C. Iris: A part of the retina that is directly opposite the pupil and contains only cone cells. It is responsible for good visual acuity (good resolution).


D. Optic nerve: The optic nerve is the second cranial nerve and is responsible for vision. Each nerve contains approx. one million fibers transmitting information from the rod and cone cells of the retina.


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