Neural Control And Coordination Ques 61
61. Characteristic feature of human cornea is its transparency and avascularity
(a) Secreted by conjunctiva and lacrimal glands
(b) It is lacrimal gland which secretes tears
(c) Blood circulation is absent in cornea, but nutrient supply is maintained through diffusion from the aqueous humor
(d) In old age, a hardening and white layer deposit forms on it, which causes cataract
Show Answer
Answer : c
Hints & Solutions
(c) The outermost layer of the eye is fibrous in nature. Two-thirds of this layer is opaque and lies inside the eye orbit and is known as sclera. The remaining one-third of the outer layer is transparent and bulges out to form the cornea. There is no supply of blood in cornea.
BETA
