Orbit Flashcards
1
Q
Roof
A
Sphenoid (lesser wing)
Orbital plate of the frontal bone
2
Q
Floor
A
Zygomatic
Maxillary
Palatine
3
Q
Medial wall
A
Maxillary Lacrimal Sphenoid Ethmoid SALEM
4
Q
Lateral wall
A
Zygomatic
Maxillary
Palatine
5
Q
Contents of optic canal
A
OOS
Optic nerve
Ophthalmic artery
Sympathetic nerve
6
Q
SOF contents
A
3,4,5,6 CN
Sympathetic nerve fibres
Orbital veins
Recurrent branch of ophthalmic artery
7
Q
IOF contents
A
5th CN(maxillary div)
Zygomatic nerve
Inf ophthalmic vein
8
Q
Orbit has
A
Eyeball, organ of vision optic nerve
EOM
Lacrimal gland and sac
BV and nerves and fat
9
Q
Spaces of orbit
A
Retro bulbar
EOM encloses it
Central space
Axial proptosis if tumor here
Peripheral orbital space
Periosteum and EOM
Peribulbar anesthesia here
Tumors cause non axial proptosis
10
Q
Spaces (2)
A
Central Peripheral orbital Subperiosteal Bw periosteum and bone Orbital cellulitis
Subtenon’s space
Space below tenon capsule
Cataract anesthesia
