LESSON 11: SENSES (EYES)

Question 1

Visual system includes the eyes, accesory structures and sensory neurons

Answer 1

Vision

Question 2

Prevent perpiration from running down forehead to eyes

Answer 2

Eyebrows

Question 3

Protect from foreign objects

Answer 3

Eyelids and eyelashes

Question 4

Rapid opening & closing of eyelids

Answer 4

Blink Reflex

Question 5

Thin, transparent mucous membrane covering the inner surface of eyelids

Answer 5

Conjunctiva

Question 6

Consist of lacrimal glands that produces tears

Answer 6

Lacrimal apparatus

Question 7

Six skeletal muscle that responsible for eyeball movement

Answer 7

Extrinsic eye muscle

Question 8

Extrinsic Eye Muscles

Answer 8

Superior rectus, inferior rectus, medial rectus, lateral rectus, superior oblique, inferior oblique

Question 9

A hollow, fluid-filled sphere within orbit

Answer 9

Eyeball

Question 10

Three tissue layers/tunics

Answer 10

1. Fibrous tunic
2. Vascular tunic
3. Nervous tunic

Question 11

Outermost layer of eyeball

Answer 11

Fibrous tunic

Question 12

Firm, white outer layer that helps maintain eye shape

Answer 12

Sclera

Question 13

Transparent; permits entry of light

Answer 13

Cornea

Question 14

Middle layer of eyeball; contains blood vessel

Answer 14

Vascular tunic

Question 15

Consist of vascular network &a many melanin containing pigment cells

Answer 15

Choroid

Question 16

Contains cillary muscles

Answer 16

Cilliary body

Question 17

A flexible biconvex, transparent dics

Answer 17

Lens

Question 18

Colored part of the eye

Answer 18

Iris

Question 19

An opening where the light passes through

Answer 19

Pupil

Question 20

Inner most of eyeball

Answer 20

Nervous Tunic

Question 21

Cover the posterior 5/6 of eye

Answer 21

Retina

Question 22

Outer; keeps light from reflecting back in eye

Answer 22

Pigmented retina

Question 23

Inner; contains photoreceptors

Answer 23

Sensory Retina

Question 24

Sensitive to light and can function in dim light

Answer 24

Rods

Question 25

Contain a photosensitive pigment

Answer 25

Rhodopsin

Question 26

Colorless protein

Answer 26

Opsin

Question 27

Yellow pigment; requires vitamin A to be manufactured

Answer 27

Retinal

Question 28

Require more light and provide color vision

Answer 28

Cones

Question 29

Regulate & relay changes in photoreceptor

Answer 29

Interneurons

Question 30

Synapse of rods and cones

Answer 30

Bipolar cells

Question 31

Together with bipolar cells; modify the output of rods and cones

Answer 31

Horizontal cells

Question 32

The first two cells synapse with these cells; form the optic nerve (II)

Answer 32

Ganglion cells