Orbit 1 Flashcards
(102 cards)
1
Q
red arrow
A
pupil
2
Q
blue arrow
A
bulbar conjunctiva
3
Q
orange arrow
A
supraorbital notch
4
Q
sensory branches of the ophthalmic nerve
A
supratrochlear
supraorbital
external nasal
infratrochlear
lacrimal
5
Q
light blue arrow
A
optic disc
6
Q
blue arrow
A
inferior ophthalmic vein
7
Q
light blue arrow
A
dorsal nasal artery
8
Q
pink arrow
A
infratrochlear nerve
9
Q
orange arrow
A
infratrochlear nerve
10
Q
pink arrow
A
superior and inferior conjunctival fornicies
11
Q
from the orbit, the infraorbital canal leads to the
A
midface
12
Q
red arrow
A
orbital septum
13
Q
orange dot
A
ethmoid bone
14
Q
green dot
A
orbital septum
15
Q
blue dot
A
sphenoid bone
16
Q
blue arrow
A
lacrimal artery
17
Q
red arrow
A
lacrimal canaliculi
18
Q
green arrow
A
cornea
19
Q
red arrow
A
inferior orbital fissure
20
Q
contact with the cornea reflex involves which nerves
A
sensory: CN V1 (general sensation)
motor: CN VII (closing the eyelid)
21
Q
red arrow
A
long ciliary nerves
22
Q
orange arrow
A
inferior tarsal plate
23
Q
red arrow
A
ciliary arteries
24
Q
ophthalmic artery is a branch of the
A
internal carotid
25
pink arrow
medial and lateral palpebral ligaments
26
blue arrow
iris
27
sensory and motor nerves involved in accomodation of the eye
sensory: CN II
motor: CN III
28
orange
infratrochlear nerve
29
green arrow
central artery of the retina
30
green arrow
cornea
31
orange arrow
nasolacrimal gland
32
pink arrow
ethmoidal nerves
33
pink arrow
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
frontal bone
36
pink arrow
lens
37
red arrow
what kind of innervation?
ciliary muscle
parasympathetic
38
green arrow
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?
dilator pupillae
sympathetic
42
red dot
zygomatic bone
43
orange arrow
fovea centralis
44
red dot
inferior tarsal plate
45
Major branches of the ophthalmic nerve
frontal nerve, lacrimal nerve, nasociliary nerve
46
pink arrow
infraorbital canal
47
from the orbit, the optic canal leads to the:
middle cranial fossa
48
pink arrow
lacrimal sac
49
blue arrow
palatine bone
50
red arrow
long ciliary nerves
51
orange arrow
ethmoidal arteries
52
branches of the frontal nerve
supraorbital nerve
supratrochlear nerve
53
orange arrow
fovea centralis
54
green arrow
optic canal
55
green arrow
frontal nerve
56
green arrow
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
supraorbital artery
60
blue arrow
lacrimal puncta
61
pink arrow
suspensory ligaments from the lens
62
green arrow
what kind of innervation?
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
optic chiasm
65
red arrow
conjunctival sac
66
pink arrow
retina
67
blue dot
superior tarsal plate
68
light blue
tarsal glands
69
green arrow
optic nerve
70
blue arrow
supraorbital nerve
71
blue arrow
short ciliary nerves
72
green arrow
lacrimal bone
73
from the orbit, the inferior orbital fissure leads to the
pterygopalatine fossa
74
red arrow
supratrochlear nerve
75
pink arrow
superior tarsal plate
76
green arrow
nasociliary nerve
77
light blue arrow
nasolacrimal groove
78
red arrow
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
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
orbital portion of obicularis oculi
86
blue arrow
sclera
87
pink arrow
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
palpebral conjunctiva
91
pink dot
maxilla bone
92
green arrow
superior ophthalmic vein
93
the lacrimal sac is located between
maxillary bone and lacrimal bone
94
blue arrow
short ciliary nerves
95
blue arrow
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
palpebral portion of orbicularis oculi
98
red arrow
optic tract
99
green dot
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
ciliary body
