chapter 12 HEENT

Question 1

Movement of the eyes is controlled by __ that allow us to look in various directions

Answer 1

Extraocular muscles

Question 2

Protects the eyes from the environment

Answer 2

eyelids

Question 3

Function as sensors to cause rapid closure of the eyelids when a foreign substance approaches the eyes

Answer 3

eyelashes

Question 4

An oily substance secreted onto the eyelids that keeps the lids soft and pliable

Answer 4

Sebum

Question 5

Covers and protects the exposed surface of the eye

Answer 5

Conjunctiva

Question 6

Where are tears manufactured?

Answer 6

Lacrimal glands

Question 7

A clear, jellylike fluid that fills the entire vitreous cavity

Answer 7

Vitreous humor

Question 8

A waterlike fluid that surrounds the iris, pupil, and lens

Answer 8

Aqueous humor

Question 9

What is the innermost layer of the eye?

Answer 9

Retina

Question 10

What is the middle layer of the eye?

Answer 10

Choroid

Question 11

What is the outer most layer of the eye?

Answer 11

Sclera

Question 12

The anterior transparent portion of the sclera is known as

Answer 12

Cornea

Question 13

It is also referred to as the white of the eye

Answer 13

Sclera

Question 14

Allows light to pass into the eye and onto the retina

Answer 14

Cornea

Question 15

Provides essential nutrients to the tissues of the eye

Answer 15

Choroid

Question 16

Colored portion of the eye and controls the size of the pupil

Answer 16

Iris

Question 17

Effective in dim light and do no perceive light

Answer 17

Rods

Question 18

Effective in bright light and do no perceive color

Answer 18

Cones

Question 19

Known as pink eye. Cause by infectious bacteria. Less Common type.

Answer 19

Bacterial conjunctivitis

Question 20

Most common type of conjunctivitis

Answer 20

Viral conjunctivitis