Shoulder Region Flashcards
Deltoid
O: Lateral 3rd of the Clavicle, Acromion, Spine of Scapula
I: Deltoid Tuberosity
N: Axillary Nerve
A: Flex, Ext, Abd, IR, ER
B: Posterior and Anterior Circumflex Humeral Artery
Coracobrachialis
O: Coracoid process
I: Middle of the Medial aspect of the shaft of the Humerus
N: Musculocutaneous Nerve
A: Flex, Add
B: Anterior Circumflex Humeral Artery
Pectoralis Major
O: Clavicle, Sternum, Upper 6 Costal Cartilage
I: Lat. lip of Bicipital groove
N: Lateral and Medial Pectoral Nerve
A: Flex, Add, IR
B: Pectoral Branches of Thoracoacromial Artery
Pectoralis Minor
O: 3rd, 4th, 5th ribs
I: Coracoid process
N: Medial Pectoral Nerve
A: Depress, Protracts, Elevates ribs if Scapula is fixed
B: Thoracoacromial Artery
Subclavius
O: 1st costal cartilage
I: Clavicle
N: Nerve to Subclavius
A: Depress and Stabilize clavicle
B: Thoracoacromial Artery
Serratus Anterior
O: Upper 8 ribs
I: Medial border and inferior angle of the Scapula
N: Long Thoracic Nerve
A: Protracts and rotate Scapula, Raises ribs during inspiration
B: Thoracodorsal Artery
Latissimus Dorsi
O: V - Spinous processes of T7 to T12, I - Posterior 3rd of Crest of Ilium, C - Ribs 9-12, S - Inferior Angle of Scapula
I: Intertubercular Sulcus
N: Thoracodorsal nerve
A: IR, Add, Ext
B: Thoracodorsal Artery
Supraspinatus
O: Supraspinous fossa
I: Greater Tubercle of Humerus
N: Suprascapular Nerve
A: Abd, ER, Stabilize shoulder joint
B: Suprascapular Artery
Infraspinatus
O: Infraspinous fossa
I: Greater tubercle of Humerus
N: Suprascapular Nerve
A: ER, Stabilize shoulder joint
B: Suprascapular Artery
Teres Minor
O: Upper 2/3 of Lateral border of Scapula
I: Greater Tubercle of Humerus
N: Axillary Nerve
A: ER, Stabilize shoulder joint
B: Suprascapular Artery
Teres Major
O: Lower 3rd of Lateral border of Scapula
I: Medial lip of Bicipital groove
N: Lower Subscapular Nerve
A: IR, Add, Stabilize shoulder joint
B: Subscapular Artery
Subscapularis
O: Subscapular fossa
I: Lesser Tubercle of Humerus
N: Upper and Lower Subscapular Nerve
A: IR, Stabilize shoulder joint
B: Axillary Artery
Upper Trapezius
O: Medial 3rd of Superior Nuchal Line, External Occipital Protuberance, Nuchal Ligament
I: Lateral 3rd of Clavicle
N: Accessory Nerve
A: Upward Rotation of Scapula, Ext, Lat Flex of Head and Neck
B: Occipital Artery
Middle Trapezius
O: Spinous processes and Supraspinous Ligaments of T1-T4
I: Medial Acromial Margin, Superior Crest of the Spine of Scapula
N: Accessory Nerve
A: Retracts Scapula
B: Transverse Cervical Artery
Lower Trapezius
O: Spinous processes and Supraspinous Ligaments of T4-T12
I: Lateral Apex of the Medial End of Scapular Spine
N: Accessory Nerve
A: Downward Rotation of Scapula
B: Dorsal Scapular Artery
Levator Scapulae
O: Transverse processes of C1-C4
I: Medial Border of Scapula
N: Dorsal Scapular Nerve
A: Upward and Downward Rotate Scapula, Lat Flex and Ext Neck
B: Ascending Cervical Artery
Rhomboid Minor
O: Nuchal Ligament, Spinous Processes of C7-T1
I: Medial Root of the Spine of Scapula
N: Dorsal Scapular Nerve
A: Upward, Downward Rotate, Support Scapula
B: Dorsal Scapular Artery
Rhomboid Major
O: Spinous processes of T2-T5
I: Medial Border of Scapula
N: Dorsal Scapular Nerve
A: A: Upward, Downward Rotate, Support Scapula
B: Dorsal Scapular Artery
