Exam 2 Flashcards
Soft Tissue Disorders to Shoulder Complex (Quiz 4 to present)
what nerves are most at risk for entrapment?
long thoracic
axillary
spinal accessory
suprascapular
what muscle does the long thoracic nerve innervate?
serratus anterior
what muscles do the axillary nerve innervate?
deltoid
teres minor
what muscles do the spinal accessory nerve innervate?
trapezius
infraspinatus
what would you see with long thoracic nerve palsy?
scapular winging
does scapular winging occur more in the frontal plane with abduction or with flexion?
with flexion
what weakness is indicated by the flip sign?
serratus anterior
scapular weakness
what would you see with axillary nerve palsy?
deltoid atrophy
weak abduction and flexion
may see compensatory motions
what would you see in spinal accessory nerve palsy?
trapezius atrophy and weakness
may have a flip sign
what is scapular dumping?
scap doesn’t come down from abduction smooth and slow, but rather quickly releases at the end of the motion
form of scapular dyskinesia
which capsule of the elbow is more loose, posterior or anterior?
posterior capsule
does the lateral collateral lig resist valgus or varus forces?
varus forces
are varus or valgus forces more common
valgus forces
do the posterior or anterior fibers of the lateral collateral lig resist varus forces more in extension?
the anterior fibers
do the posterior or anterior fibers of the lateral collateral lig resist varus forces more in flexion?
the posterior fibers
does the medial collateral lig resist varus or valgus forces?
valgus forces
do the posterior or anterior fibers of the medial collateral lig resist valgus forces more in extension?
the anterior fibers
do the posterior or anterior fibers of the medial collateral lig resist valgus forces more in flexion?
the posterior fibers
what is the carrying angle of the elbow?
allows elbows to be at the side without hitting the pelvis
normal is about 15 deg