Week 6.1 The Eye

Question 1

This fills the posterior chamber

Answer 1

Aqueous humor

Question 2

This fills the anterior chamber

Answer 2

Aqueous humor

Question 3

The white of the eye

Answer 3

Sclera

Question 4

The transparent region that is continuous with sclera

Answer 4

Cornea

Question 5

Inflammation of this is called pink eye

Answer 5

Conjunctiva

Question 6

Name for increase in intraocular pressure

Answer 6

Glaucoma

Question 7

The type of fibers that form the sclera

Answer 7

Type I collagen

Question 8

The general name for visual pigments found in cones is called

Answer 8

Iodopsin

Question 9

Controls amount of light coming into the eye

Answer 9

Iris

Question 10

Absorbs extraneous light

Answer 10

Pigmented layer of retina

Question 11

Provides sites of attachment for the muscle that moves the eye

Answer 11

Sclera

Question 12

Provides physical support for the shape of the eye

Answer 12

Sclera

Question 13

Bends incoming light

Answer 13

Lens

Question 14

Converts light to nerve impulses

Answer 14

Neural layer of retina

Question 15

Secretes aqueous humor

Answer 15

Ciliary body

Question 16

Vascularized tissue that supplies nutrition to the retina

Answer 16

Choroid

Question 17

Functions in change in the shape of lens

Answer 17

Ciliary body

Question 18

The parts of the vascular layer of the eye are

Answer 18

Choroid, ciliary body, and iris

Question 19

How many rod cells are in the human retina?

Answer 19

92M

Question 20

Vision is the sharpest in the fovea region of the retina. Why?

Answer 20

The cone cells are abundant and tightly packed.

The cell bodies of the ganglion cells are peripheral to the fovea

Very few capillaries are present in the fovea

Question 21

The “blind spot” is also known as the

Answer 21

Optic disk/disc

Question 22

Which of these is true of lacrimal glands?

Answer 22

Lacrimal glands are serous tubuloacinar glands.

Lacrimal glands are different than tarsal glands.

Tears from the lacrimal glands pass into the nasal passages by way of the nasolacrimal duct.

Question 23

Which one of these is true?

Answer 23

Rods have rhodopsin as the visual pigment.

Cones have three types of iodopsin visual pigments

Visual pigments are proteins that change their shape due to a reaction with photons.

Question 24

T/F
When the ciliary muscles are relaxed, the lens is flatter, and distant objects are in focus

Answer 24

True