Question

write the functions of the following:
cornea
iris
pupil
eye lens
retina
ciliary muscles​

Answer 1

Ans. Cornea: It is the fromt part of the eye. The light coming from objects enters the eye through cornea.

b. Iris: It controls the amount of light entering the eye.

c. Pupil: It controls the illumination in the eye.

d. Ciliary muscles: The focal length of the eye-lens can be changed by changing its shape by the action of ciliary muscles.

e. Eye-lens: It focuses light on to the retina.

f. Retina: It is a delicate membrane having a large number of light-sensitive cells called 'rods' and 'cones' which respond to the intensity of light and colour of objects respectively.

Answer 2

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