PAS407 - The Orbit UPDATED ACTUAL Questions and CORRECT
Answers
frontal bone and lesser wing of sphenoid
superior wall of orbit:
ethmoid bone, maxilla, lacrimal, sphenoid bones
medial wall of orbit:
the trochlea is found in? medial wall, superiorly
maxilla, zygomatic, palatine bones
inferior wall of orbit:
formed by zygomatic, sphenoid
o strongest, thickest wall
lateral wall of orbit:
1. fascial sheath
what are the 3 supporting apparatuses of the eye? 2. check ligaments
3. retrobulbar fat
, fascial sheath
o forms actual socket for eyeball
what envelops the eyeball?
passively elevate/depress superior/inferior eyelids during
what does the fascial sheath of the eyeball do passively?
upward/downward gaze
check ligaments
- limit abduction, adduction
what helps with stabilization of the eye?
provides padding, support to resist posterior movement
of eye during compression, muscle contraction
what is the retrobulbar fat of the eye?
retraction of eyeball into orbit during periods of starvation,
inophthalmos: what is it?
due to shrinking of retrobulbar fat
produces, distributes, and removes tears
Answers
frontal bone and lesser wing of sphenoid
superior wall of orbit:
ethmoid bone, maxilla, lacrimal, sphenoid bones
medial wall of orbit:
the trochlea is found in? medial wall, superiorly
maxilla, zygomatic, palatine bones
inferior wall of orbit:
formed by zygomatic, sphenoid
o strongest, thickest wall
lateral wall of orbit:
1. fascial sheath
what are the 3 supporting apparatuses of the eye? 2. check ligaments
3. retrobulbar fat
, fascial sheath
o forms actual socket for eyeball
what envelops the eyeball?
passively elevate/depress superior/inferior eyelids during
what does the fascial sheath of the eyeball do passively?
upward/downward gaze
check ligaments
- limit abduction, adduction
what helps with stabilization of the eye?
provides padding, support to resist posterior movement
of eye during compression, muscle contraction
what is the retrobulbar fat of the eye?
retraction of eyeball into orbit during periods of starvation,
inophthalmos: what is it?
due to shrinking of retrobulbar fat
produces, distributes, and removes tears
