Question

Given below is a diagram showing different parts of an eye

Some parts are labelled as A, B, C and D. Read the following statements about these parts and choose the correct one.

• A. The eyeball contains C, which is held in place by ligaments attached to the ciliary body.
• B. The space between B and C is filled with a transparent gel called the vitreous humour.
• C. Light rays of visible wavelength focus on A through B and C and generate impulses in the photoreceptor cells of the eye.
• D. D is the external layer, which is made up of loose connective tissue.

Answer 1

Answer: (C)

A - Retina
B - Lens
C - Cornea
D - Sclera
The light rays in visible wavelength focussed on the retina through the cornea and lens generate potentials (impulses) in the photoreceptor cells, rods and cones.
The lens is held in place by ligaments attached to the ciliary body.
The space between lens and cornea is followed with a watery fluid called the aqueous humour.
The external layer is called sclera which is made up of dense connective tissue.