Orbital Bones
What is the approximate volume of the orbit?
30 mL
What nerves and vessels exit the SOF above the annulus of Zinn?
Lacrimal, Frontal, Trochlear nerves. Superior Ophthalmic Vein
The Spiral of Tillaux. -100 for wrong answer
Distance of rectus muscles from limbus.
MILS -> 5.5, 6.5, 6.9, 7.7
What type of gland is the gland of Moll?
Apocrine
Characters include Gerry Bertier and Julius Campbell. Probably the best sports movie of all time.
Remember the Titans
What bone forms the anterior lacrimal crest? What bone forms the posterior lacrimal crest? MUST get both
Maxillary, Lacrimal
What 5 structures pass through the SOF and the Annulus of Zinn?
Superior Division of CNIII
Inferior Division of CNIII
Nasociliary nerve
Sympathetics
Abducens Nerve
During strabismus surgery, operating on this muscle theoretically poses the highest risk of visual loss. Why?
Inferior Oblique -> Inserts near macula
Where are the glands of Krause and Wolfring located?
Krause in the Krack -> Fornix
Wolfring -> Marginal border of the tarsus
Where did Andy Bernard go to school?
Cornell
-200 if you guessed Dartmouth
List the bones of the medial orbital wall, lateral orbital wall, orbital roof, and orbital floor
Medial -> Maxillary, Lacrimal, Ethmoid, Lesser Wing of Sphenoid
Lateral -> Greater Wing of Sphenoid, Zygomatic Bone
Roof -> Frontal bone, Lesser Wing of Sphenoid
Floor -> Maxillary, Palatine, Zygomatic
Name the 3 roots of the ciliary ganglion. Which root synapses?
1. Sensory root of the nasociliary nerve
2. Sympathetic root -> Postganglionic fibers from superior cervical ganglion. Does not synapse
3. Motor root from inferior division of CNIII. Preganglionic parasympathetic fibers synapse
How many short posterior ciliary arteries are there? How many short posterior ciliary nerves?
Arteries -> 16-20
Nerves -> 6-10
"Army-Navy 2010"
The narrow, highly vascular, crescent-shaped fold of conjunctiva.
Plica semilunaris
Name of Michael Scott's original movie featuring Goldenface and Michael Scarn
Threat Level Midnight
BONUS (+100): This tubercle is inferior to what suture?
Check ligament of lateral rectus, Lockwood ligament, lateral canthal tendon, lateral horn of Levator aponeurosis
BONUS: Frontozygomatic suture
Not including the levator, what is the longest EOM including muscle and tendon? What is the shortest? BONUS (+100) Where do each of these muscles originate?
Superior oblique is longest, inferior oblique is shortest
SO -> Lesser wing of sphenoid above annulus of Zinn
IO -> Orbital plate of maxillary bone
The anterior and posterior ciliary circulation anastomoses where?
When resecting the inferior rectus muscle (strengthening it by taking out some and reattaching the remaining to the insertion), what can happen to the palpebral fissure?
Narrowing (reverse ptosis). Inferior rectus has connections to the capsulopalpebral fascia.
The number 1 movie of all time according to IMDB. Morgan Freeman is a convict and secondary character.
The Shawshank Redemption
Describe the rule of 12's
24 mm from anterior lacrimal crest to anterior ethmoidal foramina, 12 mm from AEF to posterior ethmoidal foramina, 6 mm from PEF to optic canal
Name two clinical conditions highlighting the importance of the relationship between the optic nerve sheath and annulus of Zinn. Half credit for 1.
1. Retrobulbar optic neuritis
2. Thyroid optic neuropathy
What is the blood supply to the inferior rectus? Superior rectus?
Medial muscular branch of ophthalmic artery
Lateral muscular branch of ophthalmic artery
A knife goes through all the way through the eyelid and into the orbit and you see orbital fat. List the layers that the knife transected.
Skin, Orbicularis, Orbital septum, orbital fat, muscles of retraction (Levator, etc.), +/- tarsus, conjunctiva
In this show, Sazz Pataki is Steve Martin's supposed stunt double
Only Murders in the Building