The anterior segment (front of eye)

Question 1

The clear membrane at the front of the globe that begins the process of focusing light that the eye receives is called

Answer 1

The Cornea

Question 2

What are the 5 layers of the cornea?

Answer 2

Listed from the outside surface in:

1. Corneal epithelium
2. Bowman’s membrane
3. Corneal stroma
4. Descemet’s membrane
5. Corneal endothelium

Question 3

The outermost corneal layer, providing defense against injury and infection is

Answer 3

Corneal epithelium

Question 4

The _______ acts as an anchor for the epithelial layer

Answer 4

Bowman’s membrane

Question 5

The main body of the cornea, contributing to the cornea’s rigidity is the

Answer 5

Corneal Stroma

Question 6

The fourth layer of the cornea contributing to its rigidity is the

Answer 6

Descemet’s membrane

Question 7

The cells of the ______ act as pumps to maintain a proper fluid balance within the cornea

Answer 7

Corneal endothelium

Question 8

The white tissue surrounding the cornea is a continuation of the fibrous outer layer that forms the main structural component of the globe, protecting the intraocular contents. This tissue is called

Answer 8

The Sclera

Question 9

The junction between the sclera and the cornea is the

Answer 9

Limbus

Question 10

The small compartment between the cornea and the iris that is filled with aqueous humor

Answer 10

Anterior Chamber

Question 11

The junction of the cornea and the iris, from which aqueous humor leaves the eye is

Answer 11

Anterior Chamber Angle

aka Filtration angle

Question 12

A structure that drains the aqueous humor from the anterior chamber after it has flowed through the trabecular meshwork is

Answer 12

Canal of Schlemm

Question 13

The sponge-like structure that filters the aqueous humor from the anterior chamber and controls its rate of flow out of the eye is the

Answer 13

Trabecular Meshwork

Question 14

What is the main vascular compartment of the eye?

Answer 14

The Uvea/Uveal Tract

Question 15

What are the three parts of the uveal tract?

Answer 15

1. Iris
2. ciliary body
3. Choroid

Question 16

A colored diaphragm of tissue that is stretched across the rear of the anterior chamber behind the cornea is

Answer 16

the Iris

Question 17

What is the iris muscle that dilates the pupil in reduced light conditions? Fibers from this muscle stretch from the pupil to the outer boundaries of the iris

Answer 17

Dilator Muscle

Question 18

What is the name of the muscle that encircles the pupil and makes the pupil smaller in response to bright light?

Answer 18

Sphincter Muscle

Question 19

The space between the back of the iris and the front of the vitreous where the crystalline lens is suspended is?

Answer 19

The Posterior Chamber

Question 20

A band-like structure of muscle and secretory tissue that extends from the edge of the iris and encircles the inside of the sclera is

Answer 20

The ciliary body

Question 21

The inner surface of the ciliary body is arranged in folds, rows, or ridges called

Answer 21

Ciliary processes

Question 22

The muscle fibers in the ciliary body form the

Answer 22

Ciliary muscle

Question 23

The 3rd part of the uveal tract, the ______, is a continuation of the ciliary body in the form of a layer of tissue that lies between the sclera and the retina

Answer 23

Choroid

Question 24

The transparent structure located immediately behind the iris, suspended in the posterior chamber, is the

Answer 24

Crystalline lens

Question 25

The lens is suspended by transparent fibers called

Answer 25

Zonules

Question 26

The lens itself consists of an outer clear, elastic capsule filled with a clear inner core called the nucleus that is surrounded by _______ (a clear, paste-like protein)

Answer 26

Cortex