Extrinsic eye muscle Choroid Conjunctiva -Retina Ciliary body Sclera Suspensory

Question

Extrinsic eye muscle Choroid Conjunctiva -Retina Ciliary body Sclera Suspensory ligament ris Fovea Cornea Aqueous humor Canal for tear drainage Optic nerve Lens Pupil Sclera Vitreous humor Optic disc Blood vessels in retina (a) External front view (b) Internal sagittal view lFigure 6-10 Structure of the eye. equipped with protective eyelashes, which trap fine, airborne lens contains a clear, watery fluid, the aqueous humor. The aqueous humor carries nutrients for the cornea and lens, both of which lack a blood sunnly Blood vessels in these structure debris such as dust before it can fall into the eye.

Explanation / Answer

#light passes through following parts of eyes one by one

1.Cornea:strong clear bulge located outside eye

2.Aqueous humor:jelly like substance in anterior chamber of eye

3. Pupil:formed by iris

4.Lens:is layers of tissue enclosed in tough capsule

5.Vitreous humor:jelly like substance in porterior chamber

6.Retina:actual part where image forms

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1.Iris:diaphragm which adjust size of pupils to allow light passage

2.Choroid:absorbs unused radiation

3.Sclera:tough sheath around outside of eyeball.

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