Shoulder Girdle Flashcards
Proximal Attachment Levator Scapulae
Transverse Process C1-C4
Distal Attachment Levator Scapulae
Superior Angle of Scapula
Innervation Levator Scapulae
Dorsal Scapular N (c4-C5)
Blood Supply of Levator Scapulae
Dorsal Scapular A
Function Levator Scapulae
Elevation and downward rotation of scapula
Proximal Attachment Supraspinatus
Supraspinous fossa
Distal attachment Supraspinatus
Greater Tubercle of Humerus
Innervation Supraspinatus
Suprascapular N
Blood Supply Supraspinatus
Suprascapular A
Function Supraspinatus
ABD/stabilization
Proximal Attachment Infraspinatus
Infraspinous fossa
Distal Attachment Infraspinatus
Greater Tubercle
Innervation Infraspinatus
Suprascapular N
Blood Supply Infraspinatus
Suprascapular A
Function Infraspinatus
ER/Stabilization
Proximal Attachment Teres Minor
Lateral Border scapula
Distal Attachment Teres Minor
Greater Tubercle
Innervation Teres Minor
Axillary N (C5-C6)
Blood Supply Teres Minor
Circumflex scapular A
Function Teres Minor
ER/stabilization
Proximal Attachment Teres Major
Lateral border scapula
Distal Attachment Teres Major
Intertubercular Groove, medial lip
Innervation Teres Major
Lower Subscapular N (C5-C6)
Blood Supply Teres Major
Circumflex Scapular A
Function Teres Major
IR/EXT/ADD
Proximal Attachment Triceps Brachii
Infraglenoid tubercle (long head); posterior surface of humeral shaft (lateral head); posterior surface of humeral shaft, below radial nerve groove (medial head)
Distal Attachment Triceps Brachii
Olecranon Process
Innervation Triceps Brachii
Radial N (C6-C8)
Blood Supply Triceps Brachii
Deep Brachial A
Functions of Triceps Brachii
Elbow EXT
Long Head: ADD/EXT of shoulder
Proximal Attachment Deltiod
Distal clavicle (anterior head); acromion (middle head); scapular spine (posterior head)
Distal Attachment Deltoid
Deltoid Tuberosity
Innervation Deltiod
Axillary N (C5-C6)
Blood Supply Deltoid
Posterior Circumflex Humeral A
Function Deltoid
FLX/IR; ABD; EXT/ER
Proximal Attachment Subclavius
Junction of 1st rib and cartilage
Distal Attachment Subclavius
Suclavian groove
Innervation Subclavius
Subclavian N (C5-C6)
Blood Supply Subclavius
Clavicular Branch thoracoacromial A
Function Subclavius
Depression of Clavicle
Proximal Attachment Sternocleidomastoid
Manubrium & Proximal Clavicle
Distal Attachment Sternocleidomastoid
Mastoid Process & Superior Nuchael LIne
Innervation Sternocleidomastoid
Spinal Accessory N
Blood Supply Sternocleidomastoid
Occipital and Superior Thyroid A
Function Sternocleidomastoid
FLX/SB head ipsilaterally; RT head to opposite; ELE thorax+shoulder
Proximal Attachment Pec Major
Clavicular head: medial clavicle Costal head: sternum and ribs 5~6
Distal Attachment Pec Major
Lateral Lip Intertubercular crest
Innervation Pec Major
Lateral (C5-C7) and Middle (C8-T1) N
Blood Supply Pec Major
Pectorl branch throacoacromial trunk
Function Pec Major
IR/FLX/ADD
Proximal Attachment Pec Minor
Ribs 3-5
Distal Attachment Pec Minor
Coracoid Process
Innervation Pec Minor
Medial Pectoral N (C8-T1)
Blood Supply Pec Minor
Pectoral Branch of throacoacromial trunk
Function Pec Minor
Depression and Anterior tilt of scapula, elevate ribs
Proximal Attachment Biceps Brachii
Supraglenoid tubercle (long head); coracoid process (short head)
Distal Attachment Biceps Brachii
Radial Tuberosity
Innervation Biceps Brachii
Musculocutaneous N (C5-C6)
Blood Supply Biceps Brachii
Brachial A
Functions Biceps
Flexion of elbow
Supination of forearm
ADD of GH joint
Proximal Attachment Serratus Anterior
Ribs 1-9
Distal Attachment Serratus Anterior
Anterior medial border of scapula
Innervation Serratus Anterior
Long Throacic N (C5-C7)
Blood Supply Serratus Anterior
Lateral Throacic and Thoracodorsal A
Functions Serratus Anterior
Protraction, upward rotation scapula, and elevation of ribs
Proximal Attachment Coracobrachialis
Coracoid Process
Distal Attachment Coracobrachialis
Mid-shaft of medical border of humerus
Innervation Coracobrachialis
Musculocutaneous N (C5-C7)
Blood Supply Coracobrachialis
Brachial A
Function Coracobrachialis
ADD/FLX GH joint
Proximal Attachment Omohyoid
Inferior border of hyoid bone
Distal Attachment Omohyoid
Suprascapular notch
Innervation Omohyoid
Ansa Cervicalis (C1-C3)
Blood Supply Omohyoid
Infrahyoid, Lingual, superior cervical A
Function Omohyoid
Depression of hyoid bone
Proximal Attachment Subscapularis
Subscapular Fossa
Distal Attachment Subscapularis
Lesser Tubercle
Innervation Subscapularis
Upper and Lower Subscapular N (C5-C6)
Blood Supply Subscapularis
Subscapular A
Medial border of scapula off thorax too much
Weakness of serratus anterior (may or may not related with long thoracic nerve injury)
Strengthening
Winged Scapula
Inferior angle off the thorax too much
Tightness of pec minor
Stretching
Anterior Tilted Scapula