_________ and saccule are two photo receptors in vestibules.

Biconvex lens is located behind the __________ .

Which of the following  consists of cochlea, vestibules and semi circular canals?

 Cataract  affects the

_________ is a covering formed by fat.

Which chamber is seen between the lens and the cornea ?

_________  are nerves which carry impulses from the brain.

Receptors are nerve cells which have the ability to receive _______.

Which are the two parts in the retina ?

Which spot is the point where vision is not possible ?