Axilla/Shoulder joint/dorsal scapular space Flashcards
The contents of the axilla are covered by the:
AXILLARY FASCIA
The axilla is bounded by 3 bones:
Anterior: Clavicle
Posterior: scapula
Medial: 1st rib
Refers to the lateral prolongation of the prevertebral fascia which extends up to the elbow and covers the contents of the axilla.
AXILLARY FASCIA
The rotator cuff muscles (SITS)
S supraspinatus
I infraspinatus
T teres MINOR
S subcsapularis
What will STABILIZE THE SHOULDER JOINT?
Tendons of the rotator cuff muscles
Weakest part of the shoulder joint & prone to dislocation?
INFERIOR
6 INTRINSIC MUSCLES OF THE SHOULDER
Supraspinatus Infraspinatus Teres minor Subscapularis Deltoid Teres major
2 shoulder abductor
Supraspinatus
Deltoid
Main abductor of the shoulder
Deltoid
2 lateral rotator
Infraspinatus
Teres minor
2 medial rotator of the shoulder
Subscapularis
Teres major
Nerve Supply: Supraspinatus
SUPRASCAPULAR
Nerve supply: Teres minor
Axillary
Nerve supply: Deltoid
AXILLARY
Nerve supply: teres major
Lower subcsapular