Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Anatomy II Unit 2 > eye and orbit > Flashcards

eye and orbit Flashcards

1
Q

membrane lining inner eyelid

A

palpebral conjunctiva

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

membrane lining surface of the eye

A

bulbar conjunctiva

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

potential space betw palpebral and bulbar conjunctiva

A

conjunctival sac

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

conjunctival reflections from eyelid to eye

A

fornices

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

modified sebaceous glands; secretions increase viscosity of tears and decrease rate of evaporation

A

tarsal glands

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

sebaceous and sweat glands associated with eyelash follicles; blockage results in a stye

A

ciliary glands

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

support for the eyelids

A 
tendon of levator palpebrae superioris
orbital septum
superior tarsus
lateral palpebral ligament
inferior tarsus
medial palpebral ligament
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

extension of periosteum into the upper and lower eyelids

A

orbital septum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

7 bones contributing to the orbit

A 
frontal
zygomatic
maxilla
ethmoid
lacrimal
palatine
sphenoid (greater and lesser wings)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

anterior and posterior ethmoidal nerve artery and veins go to:

A

ethmoidal air cells, sphenoid sinus, nasal cavity, and meninges in the cranium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

through the roof of the orbit is the ____ and through the floor is the ____

A

anterior cranial fossa; maxillary sinus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

through the medial wall of the orbit is the ____ and through the lateral wall is the ____

A

ethmoidal air cells; temporal fossa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

objects piercing superior orbital fissure enter the ____

A

middle cranial fossa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what passes through the optic canal?

A

optic n. (CN II) and ophthalmic a.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what passes through superior orbital fissure?

A

CNs III, IV, V1, and VI ; ophthalmic vv.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what passes through inferior orbital fissure?

A

infraorbital n. and zygomatic n. and a.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

ophthalmic a. is a branch of ____

A

ICA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

supra-orbital n. is a branch of ____ and infraorbital n. is a branch of ____

A

CN V1; V2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

supraorbital a. is a branch off ____ and infraorbital a. is a branch off ____

A

ophthalmic a.

maxillary a.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

3 layers or tunics of the eyeball

A

fibrous (outer/external) layer
vascular (middle) layer
inner (internal) layer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

outer or fibrous layer is composed of the ___ and ____

A

sclera; cornea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

thin middle layer of ciliary aa. and vorticose vv.

A

choroid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

colored smooth muscle behind the cornea controlling pupil size

A

iris

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

smooth m. around the lens for accomodation

A

ciliary body

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

adjustable aperture through which light enters the eye

A

pupil

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

vorticose vv. drain choroid from each posterior quadrant of the eye and drain into the _____

A

superior and inferior ophthalmic vv.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

neural layer of eye which receives light rays

A

retina

28
Q

oval region of retina for visual acuity (yellow in color thus only visible with red-free light)

A

macula lutea

29
Q

most acute vision site at center of macula

A

fovea centralis

30
Q

regions where CN II & retinal vessels enter/exit

A

optic disc

31
Q

largely responsible for refraction of light in the eye

A

cornea

32
Q

focuses light rays and near or distant objects on the retina

A

lens

33
Q

watery filling anterior to lens

A

aqueous humor

34
Q

gelatinous filling posterior to lens

A

vitreous humor (body)

35
Q

lacrimal canaliculi transport tears to ____

A

lacrimal sac

36
Q

lacrimal sac drains tears to ____ which drains tears through ____ to area located ____

A

nasolacrimal duct; nasolacrimal canal; under inferior nasal concha

37
Q

all extraocular mm. insert onto the sclera, except _____

A

levator palpebrae superioris

38
Q

____ and ____ do intorsion of the eye and ____ and ____ do extorsion of the eye

A

superior rectus and superior oblique do INTORSION

inferior rectus and inferior oblique do EXTORSION

39
Q

____ supplies all extraocular muscles besides lateral rectus and superior oblique and carries parasyp. innervation to the ciliary ganglion

A

CN III

40
Q

___ supplies superior oblique m.

A

CN IV

41
Q

____ supplies lateral rectus m.

A

CN VI

42
Q

eye can be placed ____ to test lateral and medial rectus mm.

A

neutrally

43
Q

when the eye is placed in neutral position, it will deviate toward the ____

A

stronger pull (the opposite side of the m. you’re testing for damage)

44
Q

eye must be ____ to test superior and inferior rectus mm.

A

abducted

45
Q

eye must be ____ to test superior and inferior oblique mm.

A

adducted

46
Q

ciliary ganglion receives parasympathetic innervation from ___ which sends ____ to the posterior eye

A

CN III; short ciliary nerves

47
Q

CN III supplies parasympathetic innervation to ____ and _____

A

ciliary m. (to adjust lens for accommodation)

pupillary sphincter m. (constrict pupil)

48
Q

sympathetic innervation to pupillary dilator m. is via _____

A

internal carotid plexus

49
Q

3 types of fibers to the ciliary ganglion

A
  1. general sensory from V1 (nasociliary root)
  2. presynaptic parasympathetic from CN III
  3. postsynaptic sympathetic from internal carotid plexus
50
Q

general sensory from ciliary ganglion to the ____
parasympathetic innervation to the ____ and _____
sympathetic innervation to the ____ and ____

A

cornea
sphincter pupillae and ciliary body
intra-ocular blood vessels and dilator pupillae

51
Q

3 branches of V1 in the orbit

A

nasociliary n.
frontal n.
lacrimal n.

52
Q

lacrimal n. supplies ___ and ____

A

lacrimal gland; conjunctiva

53
Q

long ciliary nn. supply ____

A

sensory and sympathetic to posterior eye

54
Q

gives rise to all aa of the eye

A

ophthalmic a.

55
Q

supplies outer and middle layers of the eye

A

posterior ciliary aa.

56
Q

supplies inner layer of retina

A

central retinal a.

57
Q

supply anterior cranial fossa, nose, and sinuses

A

ethmoidal aa.

58
Q

supplies central region of forehead

A

supraorbital a.

59
Q

supplies medial region of forehead

A

supratrochlear a.

60
Q

supplies lacrimal gland

A

lacrimal a.

61
Q

superior ophthalmic v. from upper medial orbit and inferior ophthalmic v. from lower medial orbit anastomose with ____ and drain to ____

A

facial v.

cavernous sinus

62
Q

____ from the retina and drains to the cavernous sinus

A

central retinal v.

63
Q

____ from vascular layer of the eye drain to ____ and ____

A

vorticose vv. ; superior and inferior ophthalmic vv.

64
Q

features of the middle eye

A

choroid
ciliary body
iris
pupil

65
Q

features of the inner eye

A

retina
macula lutea
fovea centralis
optic disc

66
Q

refractive media of the eye

A

cornea
lens
aqueous humor
vitreous humor

Anatomy II Unit 2 (14 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions