Orbit 1 Flashcards Preview

Anatomy Head And Neck > Orbit 1 > Flashcards

Flashcards in Orbit 1 Deck (102):
1

red arrow

Q image thumb

pupil

2

blue arrow

Q image thumb

bulbar conjunctiva

3

orange arrow

Q image thumb

supraorbital notch

4

sensory branches of the ophthalmic nerve

supratrochlear

supraorbital

external nasal

infratrochlear

lacrimal

5

light blue arrow

Q image thumb

optic disc

6

blue arrow

Q image thumb

inferior ophthalmic vein

7

light blue arrow

Q image thumb

dorsal nasal artery

8

pink arrow

Q image thumb

infratrochlear nerve

9

orange arrow

Q image thumb

infratrochlear nerve

10

pink arrow

Q image thumb

superior and inferior conjunctival fornicies

11

from the orbit, the infraorbital canal leads to the

midface

12

red arrow

Q image thumb

orbital septum

13

orange dot

Q image thumb

ethmoid bone

14

green dot

Q image thumb

orbital septum

15

blue dot

Q image thumb

sphenoid bone

16

blue arrow

Q image thumb

lacrimal artery

17

red arrow

Q image thumb

lacrimal canaliculi

18

green  arrow

Q image thumb

cornea

19

red arrow

Q image thumb

inferior orbital fissure

20

contact with the cornea reflex involves which nerves

sensory: CN V1 (general sensation)

motor: CN VII (closing the eyelid)

21

red arrow

Q image thumb

long ciliary nerves

22

orange arrow

Q image thumb

inferior tarsal plate

23

red arrow

Q image thumb

ciliary arteries

24

ophthalmic artery is a branch of the

internal carotid

25

pink arrow

Q image thumb

medial and lateral palpebral ligaments

26

blue arrow

Q image thumb

iris

27

sensory and motor nerves involved in accomodation of the eye

sensory: CN II

motor: CN III

28

orange

Q image thumb

infratrochlear nerve

29

green arrow

Q image thumb

central artery of the retina

30

green arrow

Q image thumb

cornea

31

orange arrow

Q image thumb

nasolacrimal gland

32

pink arrow

Q image thumb

ethmoidal nerves

33

pink arrow

Q image thumb

lacrimal nerve

34

Increasing the light in one eye will result in:

sensory nerve:

motor nerve:

pupillary contraction of BOTH eyes

sensory= CN II

motor = CN III

35

green dot

Q image thumb

frontal bone

36

pink arrow

Q image thumb

lens

37

red arrow

what kind of innervation?

Q image thumb

ciliary muscle

parasympathetic 

38

green arrow

Q image thumb

lacrimal

39

What type of nerves synapse in the ciliary body

parasympathetic

40

from the orbit, the nasolacrimal groove leads to the

nasal cavity 

41

blue arrow

what kind of innervation?

Q image thumb

dilator pupillae

sympathetic 

42

red dot

Q image thumb

zygomatic bone

43

orange arrow

Q image thumb

fovea centralis 

44

red dot

Q image thumb

inferior tarsal plate

45

Major branches of the ophthalmic nerve

frontal nerve, lacrimal nerve, nasociliary nerve

46

pink arrow

Q image thumb

infraorbital canal

47

from the orbit, the optic canal leads to the:

middle cranial fossa

48

pink arrow

Q image thumb

lacrimal sac

49

blue arrow

Q image thumb

palatine bone

50

red arrow

Q image thumb

long ciliary nerves

51

orange arrow

Q image thumb

ethmoidal arteries

52

branches of the frontal nerve

supraorbital nerve

supratrochlear nerve

53

orange arrow

Q image thumb

fovea centralis

54

green arrow

Q image thumb

optic canal

55

green arrow

Q image thumb

frontal nerve

56

green arrow

Q image thumb

lacrimal gland

57

If you shine a light in one eye, and neither eye contracts, which nerve is damaged?

CN II- brain did not recieve the signal

58

lesion on the left optic tract would lead to

blindness on the right side, half of each eye getting input

59

pink arrow

Q image thumb

supraorbital artery

60

blue arrow

Q image thumb

lacrimal puncta

61

pink arrow

Q image thumb

suspensory ligaments from the lens

62

green arrow

what kind of innervation?

Q image thumb

sphincter pupillae

parasympathetic 

63

parasympathetic and symapthetic innervation of the lacrimal gland post ganglionic path

synpase in pterygopalatine ganglion, direct branch from ganglion to gland

64

blue arrow

Q image thumb

optic chiasm 

65

red arrow

Q image thumb

conjunctival sac

66

pink arrow

Q image thumb

retina

67

blue dot

Q image thumb

superior tarsal plate

68

light blue

Q image thumb

tarsal glands

69

green arrow

Q image thumb

optic nerve

70

blue arrow

Q image thumb

supraorbital nerve

71

blue arrow

Q image thumb

short ciliary nerves

72

green arrow

Q image thumb

lacrimal bone

73

from the orbit, the inferior orbital fissure leads to the

pterygopalatine fossa

74

red arrow

Q image thumb

supratrochlear nerve

75

pink arrow

Q image thumb

superior tarsal plate

76

green arrow

Q image thumb

nasociliary nerve

77

light blue arrow

Q image thumb

nasolacrimal groove

78

red arrow

Q image thumb

choroid

79

from the orbit, the superior orbital fissure leads to the

middle cranial fossa

80

postsynaptic parasympathetic to the eye synapse from the __________ ganglion and travel to the _________ via ___________

ciliary

cilary muscle/sphincter pupillae

hitchhiking on short ciliary nerves

81

green arrow

Q image thumb

nasociliary nerve

82

what does the lacrimal nerve innervate

sensory to the skin of the lacrimal region, superior eyelid

(NOT THE LACRIMAL GLAND)

83

postsynaptic symapathetic fibers to the eye hitchhike on

ciliary nerves (CN V1) to dilator pupillae

84

from the orbit the ethmoid foramina runs to the 

nasal cavity

85

green arrow

Q image thumb

orbital portion of obicularis oculi

86

blue arrow

Q image thumb

sclera

87

pink arrow

Q image thumb

ehtmoidal nerves

88

branches of the opthalmic nerve enter the orbit via the

superior orbital fissure

89

from the orbit, the supraorbital notch leads to the

superior face

90

green arrow

Q image thumb

 palpebral conjunctiva

91

pink dot

Q image thumb

maxilla bone

92

green arrow

Q image thumb

superior ophthalmic vein

93

the lacrimal sac is located between

maxillary bone and lacrimal bone

94

blue arrow

Q image thumb

short ciliary nerves

95

blue arrow

Q image thumb

ethmoid foramina

96

In accomodation the ________ muscle _________ and the lens becomes more _________ to increase __________ of light

ciliary muscle

contracts (slackens)

round

bending 

97

blue arrow

Q image thumb

palpebral portion of orbicularis oculi

98

red arrow

Q image thumb

optic tract

99

green dot

Q image thumb

superior orbital fissure

100

lesion of the left optic nerve would lead to 

blindness in one eye, only right eye getting input

101

branches of the nasociliary nerve

short ciliary nerves, long ciliary nerves, ethmoidal nerves, infratrochlea nerve

102

red bracket

Q image thumb

ciliary body