Special Senses Ch.16

Question 1

ambly/o

Answer 1

dull, dim

Question 2

aque/o

Answer 2

water

Question 3

blephar/o

Answer 3

eyelid

Question 4

choroid/o

Answer 4

choroid

Question 5

conjuctiv/o

Answer 5

conjunctiva

Question 6

core/o…pupill/o

Answer 6

pupil

Question 7

corne/o

Answer 7

cornea

Question 8

cycl/o

Answer 8

ciliary body of the eye; circular; cycle

Question 9

dacry/o…lacrim/o

Answer 9

tear; lacrimal apparatus (duct, sac, or gland)

Question 10

dacryocyst/o

Answer 10

lacrimal sac

Question 11

glauc/o

Answer 11

gray

Question 12

goni/o

Answer 12

angle

Question 13

irid/o

Answer 13

iris

Question 14

kerat/o

Answer 14

horny tissue; hard; cornea

Question 15

ocul/o…ophthalm/o

Answer 15

eye

Question 16

opt/o…optic/o

Answer 16

eye, vision

Question 17

phac/o

Answer 17

lens

Question 18

phot/o

Answer 18

light

Question 19

presby/o

Answer 19

old age

Question 20

retin/o

Answer 20

retina

Question 21

scler/o

Answer 21

hardening; sclera (white of the eye)

Question 22

scot/o

Answer 22

darkness

Question 23

vitr/o

Answer 23

vitreous body (of the eye)

Question 24

audi/o

Answer 24

hearing

Question 25

labyrinth/o

Answer 25

labyrinth (inner ear)

Question 26

mastoid/o

Answer 26

mastoid process

Question 27

ot/o

Answer 27

ear

Question 28

salping/o

Answer 28

tubes (usually fallopian or eustachian)

Question 29

staped/o

Answer 29

stapes

Question 30

myring/o…tympan/o

Answer 30

tympanic membrane (eardrum)

Question 31

-acusia…-cusis

Answer 31

hearing

Question 32

-opia…-opsia

Answer 32

vision

Question 33

-tropia

Answer 33

turning

Question 34

exo-

Answer 34

outside, outward

Question 35

hyper-

Answer 35

excessive, above normal

Question 36

General sensations

Answer 36

touch, pressure, pain, temperature

Question 37

Specific sensations

Answer 37

smell, taste, vision, hearing, balance

Question 38

Functions of the Eye

Answer 38

Consists of three distinct tunic layers

• Fibrous tunic:outermost layer…protective coat
• Vascular tunic:middle layer…blood supply
• Sensory tunic:innermost layer, retina. consists of rods and cones

Question 39

Rods

Answer 39

function in dim light. black and white vision

Question 40

Cones

Answer 40

function in bright light, color vision

Question 41

Optic nerve

Answer 41

extends from the retina to the visual regions of the brain

Question 42

Blind spot

Answer 42

center of the optic disc, where the nerve and blood vessels enter the eye…has neither rods nor cones.

Question 43

Supporting eye structures

Answer 43

extra-ocular muscles, eyelids, eyelashes, lacrimal glands (produce tears)

Question 44

Function of the Ear

Answer 44

Sense receptor organ responsible for hearing and equilibrium.

• hearing is a function of the cochlea
• equilibrium is a function of the semicircular canals and vestibule

Question 45

Three aspects of the ear

Answer 45

External: conducts sound waves through the air
Middle: conducts sound waves through bone
Inner: conducts sound waves through fluid

Question 46

Middle ear bones

Answer 46

Malleus(hammer): attached to the tympanic membrane
Incus(anvil):between the malleus and the stapes
Stapes(stirrup):between the incus and the oval window

Question 47

Cochlea

Answer 47

first structure of the inner ear

-snail-shaped, filled with fluid called perilymph and lined with sensitive nerve endings called hair cells.

Question 48

equilibrium

Answer 48

Vestibular system: (part of the inner ear) devoted to the control of balance and eye movement.

• consists of fluid filled tubes
• semicircular canals