UE Muscles Flashcards
Latissimus Dorsi attachments
Lower thoracic spinous process, thoracolumbar fascia, iliac crest to
Floor of the intertubercular sulcus of humerus
Levator Scapulae attachment
Transverse processes of C1-C4 to
Superior angle & superomedial boarder of scapula
Pectoralis Major Attachments
Clavicular head: clavicle, costal cartilages, sternum
Sternal head: aponeurosis of the external oblique to the lateral lip of the intertubercular sulcus of humerus
Pectoralis Minor Attachments
From outer surfaces of ribs 3-5 to
Coracoid process
Rhomboids Attachments
Major: spinous processes T2-5 to medial boarder of scapula
Minor: ligamentum nuchae and spinous processes C7-T1 to medial boarder of the scapula
Serratus Anterior Attachments
Outer surfaces & superior boarders of upper 8-10 ribs to
Costal surface of the medial boarder of the scapula
Subclavius Attachments
First rib & cartilage to
Undersurface of the clavicle
Trapezius Attachment
Superior nuchal line, external occipital protuberance, ligamentum nuchae & cervical + thoracic spinous processes to
Clavicle, acromion & scapular spine
Deltoid Attachment
Clavicle, acromion & spine of scapula to
Deltoid tuberosity of humerus
Supraspinatus Attachment
Medial 2/3 of supraspinous fossa to the superior facet of the greater tubercle of humerus & shoulder joint capsule
Infraspinatus Attachment
Medial 2/3 of infraspinous fossa to
Middle facet of the greater tubercle of the humerus & shoulder joint capsule
Teres Minor Attachment
Upper 2/3 of dorsal surface of the lateral boarder of scapula to
Inferior facet of the greater tubercle of the humerus & shoulder joint capsule
Subscapularis Attachment
Subscapular fossa to
Lesser tubercle of humerus
Teres Major Attachment
Dorsal surface of inferior angle scapula & lower 1/3 of the lateral boarder of the scapula to
Medial lip of the intertubercular sulcus of humerus
Anconeus Attachment
Lateral epicondyle of humerus to
Lateral surface of olecranon process
Biceps Brachii Attachment
Short head: Coracoid process to radial tuberosity & deep antebrachial fascia (through bicipital aponeurosis)
Long head: Supraglenoid tubercle to radial tuberosity & deep antebrachial fascia (through bicipital aponeurosis)
Brachialis Attachment
Distal anterior shaft of humerus & lateral & medial inter muscular septa to
Coronoid process & ulnar tuberosity
Coracobrachialis Attachment
Coracoid process to
Proximal medial shaft of humerus
Triceps Brachii Attachment
Long head: Infraglenoid tubercle of scapula
Lateral head: proximal posterolateral shaft of humerus
Medial head: distal posteromedial shaft of humerus
To olecranon process of ulna