anatomy of the eye Flashcards
the bony orbit of teh eye is what shpe
pyrmaidal
the base of the bony orbit opens into the
face
the apex of the bpony orbit extends to the
posteromedial portion ( optioc formaen)
bony orbit roof
frontal spehnoid
bony orbit floor
maxillae zygomatic palatine
lateral wal of the bony orbit
zygomatic and sphenoid
medila wall of te bony orbit
lacrimal ethmoid maxilla spehnoid
orbital fissures and formina
superiro and inferior orbital fissures , ethmoidal fromina and optic canal
optic canal transmits
optic nerve and its meningeal sheaths and the opthalmic arteyr
superior orbital fissure transmits
cranial nerve 3,4 opthalmic of 5, 6 and branches opthalmic nerve and opthalmic vein
ethmoidal foramina transmist
ethmodial vessels & nerves
inferior orbital fissure transmists
infraorbital and zygomatic branches of maxillary nerve and vessels
muscles of the eye
extra and intra ocular
extra movemnt of the eye
intra shape of the lens control the pupil size
extrinsic muslces of teh ye
4 recti ( superior inferior medial andlateral )
2 oblique ( superior inferior)
levator palpebrae superioris
nerve supply of teh exrrinsic muscles of the eye
oculomotor nevre
SO4 LR6
THE intrinsic muscles of the eye
cillary msucles
dilattaor and sphincter pupillae muscle
nerve sypply of the intrinsic muscles
3 para sympathtic excpet for the dilator sympathetic
motor nerves pof teh orbity
3,4,6
sensory nerve sof the orbit
optic
opthalmic nerve divion of the trigemnal nerve
the coats of the eye ball
outer fibrous coat
middle pigemnetd vascular coat
inner nervous coat
the outer fibrous coat conisists of
sclera and the cornea ; sixth anteriro transperent psrt
5/6 posterior part of the yeball
miidle pigemnted vacular coat
ciliary bdoy
choroid
iris
the outer fibrous coat is pierced
posteriorly by the optic nerve and its dural sheath
the cornea
transperent
refarcts the light into the eye
it is in contact posteriorly with teh aqueus humor