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68 Cards in this Set

  • Front
  • Back
two thin movable folds guarding the orbital opening
eyelids
lateral angles of the eyelids
canthus
more acute and more direct contact with the eyeball
lateral angle
more rounded canthus
medial angle
the medial canthus is separated from the eyeball by a space called ___
lacrimal lacus
small reddish yellow
lacrimal caruncle
reddish semilunar fold
plica semilunaris
opening, serves as entrance to conjunctival sac
palpebral fissure
inward direction of eyelashes
intropion
rupture of the terminal branches of ___ leads to black eye
opthalmic artery
fibrous framework of the eyelids
orbital septum
thickened at the margins of eyelids
tarsal plates
support the orbital septum
palpebral ligaments
strong fibrous band that connects the tarsi with medial
gives origin to fibers of orbicularis oculi
medial palpebral ligament
lines the under surface of the eyelids
a thin transparent moist vascular membrane with a epithelial covering
palpebral conjunctinva
connected to the sclera
shiny portion of the eyes
bulbar conjunctiva
spaces formed by the reflection of palpebral conjuctiva onto the eyeball
fornices
a groove under eyelids close and parallel to the margin, tend to trap foreign particles
subtarsal sulcus
closes eyelids
palpebral portion of orbicularis oculi
opens eyelids
levator palpabrae superioris
sebaceous glands that opens directly into the eyelids follicles
glands of zeis
inflammation results to reddening of the margin of the eyelid
style or external hordeolum
long modified sebaceous gland in the deep surface of tarsi
secretes oily material in margin of eyelids that prevents overflowing of tears
helps in making the closed eyelids airtight
tarsal glands
hardening at the site of hordeolum
chalazion
blood supply of the palpebra
palpebral arteries from ophthalmic artery and its lacrimal branch
venous drainage of the palpebra
palpebrae veins, ends in supratrochlear and anterior facial vein
secretes tears
lacrimal apparatus
large part of the lacrimal apparatus
orbiral part
small part of the lacrimal apparatus
palpebral part
flow of the tears
lacrimal gland
conjunctival sac
medial canthus
lacrimal puncture
superior/inferior lacrimal canaliculi
lactrimal sac
inferior meatus
a fold of mucus membrane that acts as a flap-valve preventing air and secretion of the nose from being driven up the nasolacrimal duct
nasolacrimal fold of hesner
superior wall of the orbit
orbital plate of frontal bone
posterior wall of the orbit
lesser wing of sphenoid
contains the fossa for lacrimal gland and lateral angle
roof of the orbit
inferior wall of the orbit/floor
orbital surface of the body of maxilla
orbital surface of body of maxilla is separated from the lateral wall by
inferior orbital fissure
lateral wall of the orbit
inferior orbital fissure
lateral wall of the orbit
greater wing of the sphenoid bone
contents of the orbit
1. extraocular muscles
2. lacrimal gland
3. fascial sheath
4. nerves
5. eyeball
Tenori's capsule
faschial sheath of the eyeball
fascia bulbi
separates eyeball from orbital fats
fascia bulbi
closely envelops from entrance of optic nerve to corneo-scleral junction
fascia bulbi
attachement for the eyeball from the muscle to the bone
check ligaments
nerves in the orbit
frontal nerve
lacrimal nerve
trochlear nerve
optic nerve
nasociliary nerve
ciliary ganglion
branches of the nasociliary nerve
1. branch to ciliary ganglion
2. long ciliary
3. posterior ethmoidal nerve
branches of the posterior ethmoidal nerve
1. infratrochlear nerve (smaller)
2. anterior ethmoidal nerve
paired peripheral organ of sight
eyeball
3 coats of the eyeball
fibrous
vascular (uveal) pigmented coat
nervous coar
refractive media of the eye
1, aqueous humor
2. vitreous body
3. lens
2 components of fibrous coat
1. sclera
2. cornea
posterior 5/6 of the eyeball
sclera
sclerocorneal junction
limbus
found in limbus, drainage of aqueous humor
canal of schlemm
aqueous humor is produced by ___
ciliary process
avascular transparent window on anterior 1/6 of the eye
corneal
components of the vascular coat
1. choroid
2. ciliary body
3. iris
focusing in darkroom
choroid
types of ciliary muscle
1. radiating (outer)
2. circular (inner)
finger-like projections, conencted to suspensory ligaments of lens
ciliary process
thin, circular, contractile pigmented diaphragm
iris
between the two layers of retina there is a wavy ring called
oro serrata
oval yellowish area at the center of posterior portion
macula lutea
depression found in macula lutea which only contains cones
area of sharpest vision
fovea centralis
blind spot, entrance of optic nerve
optic disc
flow of aqueous humor
1. post chamber
2. pupil
3. anterior chamber
4. spaces of fontana
5. canal of schlemm
gel-like substance provdes shape to the pst. part of the eyeball
vitreous body
fibrous ribbons attached to the back of ciliary processes
ciliary zonules
2 layers of lens
1. posterior layer - hyaloid fossa;delicate
2. anterior layer; suspensory ligaments