Fovea, choroid, cornea, and iris.

Choroid is

Colour of the eye like blue or black is due to (a) sclera (b) choroid (c) retina (d) iris

Ciliary muscles , choroid , fovea , gustatory cells

Match the following with respect to eye of insect {:(,(a),"Apposition image",,(i),"Secretes crystalline cone"),(,(b),"Diopterical region",,(ii),"Refractive region of an ommatidium"),(,(c),"Retinulae",,(iii),"Region having cornea and crystalline cone"),(,(d),"Vitrella",,(iv),"Houseflies"),(,(e),"Cornea",,(v),"Photoreceptor cells"):}

cornea, retina, sclera, choroid

Draw a diagram of the vertical section of human eye and label the following parts : (i) cornea, (ii) iris, (iii) aqueous humour, (iv) retina, (v) ciliary body, (vi) fovea centralis, (vii) choroid, (viii) pupil, and (ix) lens.

Which one of the following forms the pigmented layer in eye ? (a) choroid (b) retina (c) sclera (d) fovea

Fovea centralis of retina perceives

Now a days, Cornea transplant is very popular. The reason is that :

Cornea, sclerotic, aqueous humour, lens, and vitreous humour.