Eye And Orbit Test 4

Front 1

bones forming margin of orbit

Back 1

frontal
zyogmatic
maxillary

Front 2

bones of lateral wall of orbit

Back 2

zygomatic bone

Front 3

bones of floor of orbit

Back 3

maxillary bone

Front 4

bones of medial wall of orbit

Back 4

ethmoid
lacrimal

Front 5

formed by gap between greater and lesser wings of sphenoid bone

Back 5

superior orbital fissure

Front 6

gap between maxillary bone and the greater wing of the sphenoid bone

Back 6

inferior orbital fissure

Front 7

location of optic foramen for optic canal

Back 7

root of lesser wing of the sphenoid bone

Front 8

only eye muscle that does not originate from the fibrous ring

Back 8

inferior oblique muscle

Front 9

muscle superior to the fibromuscular cone

Back 9

levator palpebrae superioris

Front 10

innervation to levator palpebrae superioris

Back 10

CN III

Front 11

path of tear drainage

Back 11

lacrimal canaliculi at Punctum
lacrimal sac
nasolacrimal ducts
interior nasal meatus

Front 12

preparasympathetic innervation to lacrimal gland

Back 12

Facial nerve
carried by greater petrosal nerve through pterygopalatine canal to pterygopalatine ganglion

Front 13

post parasympathetic innervation to lacrimal gland

Back 13

carried by zygomatic branch of maxillary nerve and
lacrimal branch of opthalmic nerve

Front 14

action of superior rectus

Back 14

turns eye superiorly and medially

Front 15

action of inferior rectus

Back 15

turns eye inferiorly and medially

Front 16

action of superior oblique

Back 16

incyclotorsion
depression
abduction

Front 17

innervation to superior oblique

Back 17

trochlear nerve

Front 18

action of inferior oblique

Back 18

excyclotorsion
elevation
abduction

Front 19

opthalmic artery comes from ...

Back 19

internal carotid artery

Front 20

branches of opthalmic artery

Back 20

Central artery to retina
posterior ciliary arteries
lacrimal artery
supraorbital artery
anterior / posterior ethmoid arteries
dorsal nasal
supratrochlear
medial palpebral

Front 21

superior and inferior opthalmic veins communicating with ...

Back 21

cavernous sinus and
pterygoid plexus

Front 22

nerve lying outside the muscular cone

Back 22

CN IV

Front 23

nerve innervating the lateral rectus and lying lateral inside the muscular cone

Back 23

CN VI

Front 24

preganglionic parasympathetic nerves to the ciliaris muscle and sphincter pupillae originate from where?

Back 24

Edinger-Westphal nucleus

Front 25

What carries preganglionic parasympathetic nerves from the E-W nucleus to the ciliary plexus?

Back 25

inferior branch of occulomotor

Front 26

post ganglionic parasympathetic nerves are carried by ______________ from ciliary plexus to ciliary muscles and sphincter pupillae

Back 26

short ciliary nerves of occulomotor

Front 27

branches of V2 that enter orbit above fibrous ring

Back 27

frontal and lacrimal

Front 28

branch of V2 that enters orbit within fibrous ring

Back 28

nasociliary

Front 29

frontal nerve divides into ...

Back 29

supraorbital
supratrochlear

Front 30

origin of post ganglionic fibers to dilator pupillae and sensory fibers to cornea

Back 30

superior cervical ganglion

Front 31

carries post ganglionic sympathetic fibers from cervical ganglion to dilator pupillae

Back 31

two long ciliary nerves branched from nasociliary nerve <V1>

Front 32

branches of nasociliary nerve

Back 32

long ciliary nerves
infratrochlear
posterior and anterior ethmoid nerves

Front 33

indirect trauma that displaces the orbital walls

Back 33

blowout fracture

Front 34

best side to approach the eyeball in surgery

Back 34

lateral side

Front 35

tumors in temporal and infratemoral fossa can enter orbit through....

Back 35

inferior orbital fissure

Front 36

obstruction of ciliary glands result in...

Back 36

sty

Front 37

cysts of the sebaceous glands of the eye

Back 37

chalazia

Front 38

chalazion of tarsal gland that protrudes toward the eyeball and rubs against it as the eyelids blink

Back 38

tarsal chalazion

Front 39

subconjuctal hemmorage

Back 39

bright or dark red patches deep to and within the bulbar conjunctiva

Front 40

develop from optic cup

Back 40

retina and optic nerve

Front 41

pigment layer is firmly attached too...

Back 41

choroid

Front 42

results from seepage of fluid between the neural and pigment cell layers of the retina

Back 42

detached retina due to trauma

Front 43

nerves of pupillary light reflex

Back 43

Afferent: CN II
Efferent: CN III

Front 44

first sign of compression of the ocuomotor nerve

Back 44

ipsilateral slowness of the pupillary response to light

Front 45

inflammation of the vascular layer of the eyeball

Back 45

Uveitis

Front 46

swelling of the optic disc caused by pour venous drainage of CSF

Back 46

papilledema

Front 47

changes in focusing power of the lens

Back 47

presbyopia

Front 48

loss of transparency of the lens

Back 48

cataracts

Front 49

results from failure of choroid fissure to close

Back 49

absence of a section of iris
(coloboma of iris)

Front 50

pressure builds up in the anterior and posterior chambers of the eye

Back 50

glaucoma

Front 51

nerves of corneal reflux

Back 51

Afferent: CN V1
Efferent: CN III

Front 52

diplopia

Back 52

double vision

Front 53

thrombophlebitis

Back 53

passage of thrombus from cavernous sinus to central retinal vein