Shoulder Flashcards
What plexus supplies the innervation for muscles of the shoulder?
Brachial plexus
What muscle lies directly above the spine of scapula?
Supraspinatus
O: Supraspinatus
supraspinous fossa
I: Supraspinatus
greater tubercle of humerus
F: Supraspinatus
prime mover for abduction of the upper limb of the first 30ᵒ
N: Supraspinatus
branch of brachial plexus
O: Infraspinatus
spine of scapula
I: Infraspinatus
greater tubercle of humerus
F: Infraspinatus
lateral rotation of the shoulder
N: Infraspinatus
branch of brachial plexus
O: Subscapularis
subscapular fossa
I: Subscapularis
lesser tubercle of humerus
F: Subscapularis
prime mover for medial rotation of the shoulder
N: Subscapularis
2 branches of brachial plexus
O: Deltoid
clavicle, acromion, spine of scapular (U-shaped origin)
I: Deltoid
deltoid tuberosity of the humerus
F: Deltoid
prime mover for abduction of the upper limb for 30-90ᵒ
N: Deltoid
axillary nerve of brachial plexus
Prime mover for abduction of upper limb for first 30ᵒ
Supraspinatus
Prime mover for medial rotation of the shoulder
Subscapularis
Prime mover for abduction of the upper limb for 30-90ᵒ
Deltoid
Prime mover for abduction of upper limb
1) Supraspinatus
2) Deltoid
