The eye as an optical system

Question 1

The first part of the eye’s optical system is the clear, round membrane at the front of the globe called:

Answer 1

The Cornea

Question 2

Behind the cornea lies the colored circle of tissue that controls the amount of light entering the eye by enlarging or reducing the size of its aperture, the pupil,
What is this called?

Answer 2

The Iris

Question 3

Behind the iris lies the _______, part of the optical focusing system of the eye

Answer 3

The Lens/Crystalline Lens

Question 4

The large space behind the lens is filled with a clear, jelly-like substance called the _______

Answer 4

Vitreous

Question 5

The inner lining of the posterior segment of the eyeball consisting of a layer of light sensitive cells that convert images from the optical system into electric impulses sent along the optic nerve for transmission to the brain is called ________

Answer 5

The Retina

Question 6

The nerve that carries electric impulses to the brain’s visual cortex, where they are integrated to produce the sensation of sight is _________

Answer 6

The Optic Nerve