lab 4: the eye and the ear

Question 1

what bones form the orbit

Answer 1

zyg
maxilla
sphenoid
frontnal
ethmoid
palatine 
lacrimal

Question 2

what are the 8 structures of the lacrimal appartus

Answer 2

lacrimal galnds
lacrimal ducts
lacrimal papilla
caruncle
punctum of lacrimal appartus 
lacrimal canniculi 
lacrimal sac
nasolacrimal duct

Question 3

the two lacrimal canniculi drain into what

Answer 3

lacrimal sac

Question 4

what are the openigns found i nthe orbit

Answer 4

sup orbital fissure
inf orbital fissure
optic formanen
infnraobital forman
supraorbital foramen/notch

Question 5

what are the 7 muscles of the eye

Answer 5

med rectus
sup rectus
lateral rectus
inf rectus

sup oblique
inf oblique
lev papl. superioris

Question 6

the lev sup pal. is innervates by what

Answer 6

III

Question 7

the sup rectus is innervated by what

Answer 7

III

Question 8

the inf rectus is inenrvatetd by what

Answer 8

III

Question 9

the medial rectus is innervatetd by what

Answer 9

III

Question 10

the lateral rectus is innervatted by what

Answer 10

VI

Question 11

the superior oblique is inenrvated by what

Answer 11

IV

Question 12

the inferior oblique is inenrvatioed by what

Answer 12

III

Question 13

the inf oblique orginnattes laterally or medaially

Answer 13

laterall

Question 14

qhat are the 5 nerves assocaited with the eye

Answer 14

optic (2)
occulomotor (3) 
troc (4) 
trig (ohptthalmic)
abductents (6)

Question 15

what division of trigeminal is important for vision

Answer 15

opthalmic

Question 16

what are the 3 divisons of the ophthalmic nerve

Answer 16

lacrima
grontal
nasociliary

Question 17

what is the most medial nerve of the ophtalmic

Answer 17

nasocillary

Question 18

what is tthe most lateral nerve of the ophthalmic

Answer 18

licarmial

Question 19

what are the 2 imporatnt vessels of the eye

Answer 19

ophtalmic artery

lacrimal artery

Question 20

where is the phtalmic arteri

Answer 20

passes through optic formane with the optiv never

Question 21

what are the 3 external pars of the eye

Answer 21

cornea
scelra
conjunctiva (bulbar/palpebral)

Question 22

the cornea is the what

Answer 22

clear membrane

Question 23

the sclera is the what of the eye

Answer 23

white

Question 24

the extnal is considered membranous or vascular

Answer 24

membranous

Question 25

what are the middle eye structires (vascular)

Answer 25

``` iris pupil lens sus lig cill body choroid anterior and posterior cavity ```

Question 26

what is another name for anterior cavity

Answer 26

aqueous humor

Question 27

what is another name for the posterior cavity

Answer 27

vitreous humor

Question 28

what is just posterior to the lens

Answer 28

posterior cavity

Question 29

what are the 2 divisions of the anterior cavity

Answer 29

antterior and psoterior chambers

Question 30

what divides the psoterior and anterior chambers

Answer 30

iris

Question 31

what re the internal/nervous parts of the eye

Answer 31

``` ora serata retinna optic disk fovea centralis macula lutea ```

Question 32

what are the exteral partts of the ear

Answer 32

``` auricle helix antihelix tragus antitragis concha lobule external acoustic meaturs mastoid porcess ```

Question 33

the ear is located of nwhat portion of the temporal bone

Answer 33

petrous

Question 34

what is anther name for middle ear

Answer 34

tympanic cavity

Question 35

what is the lateral wall

Answer 35

tympanic membrane

Question 36

what m,akes up the typanic membrane

Answer 36

pars flacida | parts tensa

Question 37

what is located at the end of the external acoustic meatus

Answer 37

tympanic membrane

Question 38

what are the 3 ossicles

Answer 38

malleus incnus stapes

Question 39

what two ossicles are linkes

Answer 39

incus and stapes

Question 40

what are the 2 muscles of the ear

Answer 40

tensor tympanic | stapedius meuscle

Question 41

the tensor tympani musscle is inervated by what

Answer 41

mandibular nerve (CV3)

Question 42

the stapedius muscle is inenrvatted by what enrves

Answer 42

facial nerve (CVII)

Question 43

what is the internal ear tube called

Answer 43

eustathian tube (auditory tube)

Question 44

what does the stapes insert on

Answer 44

oval window

Question 45

what are the two windows

Answer 45

round and oval window

Question 46

what is the cavity is the ear

Answer 46

tympanic antrum

Question 47

what are the 3 subdivisons of the labrynth

Answer 47

cochae vestibule semicirc canals

Question 48

what are the features of the coclea

Answer 48

``` modiolus helicotrema choch dunct scala vestibule scala tympini ```

Question 49

what are the 2 sections that make up the vestibula

Answer 49

saccule and utricle

Question 50

what is the byump at the end of the semicric cansls

Answer 50

ampullae

Question 51

what are the 2 important nerves for the ear

Answer 51

``` vestibulococholae (CVIII) facial nerve (CVII) ```

Question 52

where do the vesttibulo and facial nerves back through

Answer 52

the itnernal acoustic meatus