eyes,nose and ears

Question 1

COMPONENTS OF THE EYE

CONJUNCTIVA

Answer 1

STRATIFIED SQUAMOS EPITHELIUM

COVERS ANTERIOR SURFACE OF EYE

Question 2

LENS

Answer 2

FOCUSING MECHANISM

Question 3

fibrous tunic - outer layer

Answer 3

sclera - white part of eye. DICT

cornnea - DICT. does not change shape

Question 4

vascular tunic - middle layer

Answer 4

choroid coat - LCT feeds and protects retina
ciliary body - ciliary muscle
iris - sits anterior to lens. opening in this muscular ring is the pupil

Question 5

function of the iris

Answer 5

pupil - dark spot center of eye. allowes light to pass to the lens of the eye

sphincter pupillae muscle -
S:controled bu parasympathetic nervous system
F: decreases size of pupil

dilator pupillae muscle -
S:Controled by sympathetic nervous system
F: increases size of pupil

Question 6

order of light intering eye

Answer 6

conjunctiva             classy
cornea                   chickens
pupil                      pass
lens                       lame
retina                     roosters

Question 7

internal tunic or retina

Answer 7

transducer cells live in retina
rods - black,white and gray
cones - color

Question 8

STRUCTURE AND FUNCTION OF EAR

2 functions

Answer 8

sound reception - hearing cochlear divison

equilibrium - balance - vestibular divison

Question 9

3 divisons of ear

Answer 9

external ear - collect sound waves and pass them inside
middle ear - air filled cavity within the tempral bone
inner ear - fluid filled cavity within the tempral bone

Question 10

MIDDLE EAR ANATOMY

Answer 10

tympanic cavity- amplify the sound waves that enter the ear
tympanic membrane - ear drum - seperates middle and external ear
pharyngotympanic,auditory tube or eustachian tube
regulates air pressure tympanic cavity
seperates the pharynx and tympanic

Question 11

muscles of the middle ear

Answer 11

dampen sudden sound waves

Question 12

cochlear division of inner ear has to do with

Answer 12

sound

Question 13

vestubular division of the inner ear has to do with

Answer 13

balance or equilibrium

Question 14

saccule and utricle has to do with

Answer 14

linear motion

Question 15

semicircular ducts has to do with

Answer 15

angular ecceleration

Question 16

NOSE

olfactory epithelium is located

Answer 16

on the ceiling of the nasal cavity

Question 17

olfactory receptor cells

Answer 17

1,000 different types

can smell 10,000 different things