shoulder Flashcards
(32 cards)
shoulder positions ___ in space
hand
proximal stability means distal
mobility
shoulder complex has what bones
humerus, clavicle, scapula
what joints are in the shoulder complex?
glenohumeral joint
acromioclavicular joint
sternoclavicular joint
what movements can the GHJ do?
flexion/extension
abduction/adduction
IR/ER
open packed position is where the?
where capsule and ligaments are most laxed (mobile but unstable)
- this is where mobilization can occur
position of joint when in the open packed position?
55 degrees abduction and 30 degrees horizontal adduction
closed packed position of the GHJ is where
capsule and ligaments are most taut and contracted
-where most dislocations occur
position the GHJ is in for a closed packed positon?
90 degrees abduction and full ER
most of the motion from the shoulder is done by which joint?
GHJ
which joint is where the scapula moves?
acromioclavicular joint
which two ligaments support the acromioclavicular joint?
AC ligament
coracoclavicular joint
nerve root for GHJ
C5-6
nerve root for AC joint
C4
open packed positon for the AC joint?
arm at side
closed packed positon for the AC joint?
shoulder abducted 90 degrees
what is the only direct articulation between the shoulder complex and axial skeleton?
sternoclavicular joint
open-packed position of the SCJ
arm at side
closed packed position of the SCJ?
full UE elevation
scaption occurs ___ anterior to the ___ plane
30-45 degrees; frontal
4 rotator cuff muscles are
supraspinatus
subscapularis
teres minor
infraspinatus
scapula extends from what vertebrae
T2-T7 or T9
greater tuberosity is where what muscles attach
supraspinatus and teres minor
less tuberosity is where what muscle attaches
subscaplaris
