week 5 Flashcards
what are the two sections of the eye
anterior segment
prosterior segment
a = 1/3 of eye p=2/3 of eye
what do eyelids do
protects eye from getting dr by secreting oils
what is the sclera
white section outer body formed by collogen
what is a limbus
boundary between two things
what is the conjunctiva
thin layer to provide oxygen to sclera and produces tear film
what is the caruncle
sweat and oil glands to protect the eye
what are the upper and lower punctum
where tears drain
what is the inner canthus
closest to the nose and where lids meet
what is the outer canthus
outer part where lids meet
what is the iris
coloured part of eye
what does the ciliary body do
pull on sensory ligaments
what do suspensory ligaments do
pull on the lens
what is the choroid
full of blood vessels allows nutrients and oxygens to the retina
how many indiv bones in the skull
22 indiv. bones
how many cranial bones in the skull
8
what are the 8 cranial bones
2x parietal bones
2x temporal bones
occipital bone
frontal bone
sphenoid bone
ethmoid bone
how many facial bones are
14
how many facial bones form the bony orbit
7
what are the layers of the meninges
outer- dura mater
anachnoid
inner- pia mater
what are the bones within the orbit
zygomatic
maxilla
lacrimal
palatine
sphenoud
ethmoid
frontal
zero maintence learning parisa says essentially failing
what are the areas of the orbit
roof
floor
median
lateral
foramen and fissures
apex
optical axis
what is the orbita
eye and its surrounding structures
filled with fat which acts as a shock absorber
thin bone on orbital floor
what happens in an orbital floor blowout fracture
thin bone prone to trauma fractures
causing fatty tissue to enter cavity below
patients present with diplopia and sunken ocular globe
what does peri mean
next to
what bones are on the roof of the orbit
orbital plate of frontal bone
lesser wing of sphenoid
what bones are on the orbital floor
orbital plate of maxilla
orbital surface of zygomatic
orbital process of palatine
what bones are in the median part of the orbit
frontal process of
maxilla
lacrimal bone
orbital plate of ethmoid
body of sphenoid
what bones are in the lateral part of the orbit
zygomatic and greater wing of sphenoid
where is the apex of the orbit
optic canal
carries optic nerve
