A. LAB (Intrinsic Muscles FL Arm) Flashcards
Deltoideus
(acromial and scapular) O+I
O: Spine and acromial process of scapula
I: Deltoid tuberosity
Deltoideus
(acromial and scapular) A
Flex the shoulder
Infraspinatus O+I
O: Infraspinous fossa
I: Small, circumscribe area on lateral side of greater tubercule of humerus
Infraspinatus A
-extend or flex the joint
-abduct the shoulder
-rotate humerus laterally (weight bearing)
Teres minor O+I
O: Infraglenoid tubercule and distal third of caudal border of scapula
I: Teres minor tuberosity of humerus
Teres minor A
-flex the shoulder
-rotate laterally (prevent medial rotation-weight bearing)
Supraspinatus O+I
O: Supraspinous fossa
I: Greater tubercule of the humerus (by thick tendon)
Supraspinatus A
Extend and stabilize shoulder joint
Subscapularis O+I
O: Subscapular fossa
I: Lesser tubercule of the humerus
Subscapularis A
-adduct
-extend
-medially stabilize
shoulder joint
Teres major O+I
O: -caudal angle and adjacent caudal border of scapular
-caudal surface of subscapularis
I: Teres major tuberosity of the humerus
Teres major A
-flex
-rotate medially
-prevent later rotation (weight bearing)
shoulder joint
Coracobrachialis O+I
O: Coracoid process of the scapula
I: Crest of less tubercule of humerus proximal to teres major tuberosity
Coracobrachialis A
-adduct
-extent
-stabilize
shoulder joint
Tensor fasciae antebrachia O+I
O: Fascia covering the later side of latissimus dorsi
I: Olecranon
Tensor fasciae antebrachia A
Extend elbow joint
Triceps brachiaii long head O+I
O: Caudal border of scapula
I: Olecranon tuber
Triceps brachiaii lateral head O+I
O: Tricipital line of humerus
I:Olecranon tuber
Triceps brachiaii acessory head O+I
O: Neck of humerus
I:Olecranon tuber
Triceps brachiaii medial head O+I
O: Crest of less tubercule near teres major tuberosity
I: Olecranon
Triceps brachiaii long head A
-extend elbow joint
-flex shoulder joint
Triceps brachiaii lateral, accessory, medial head A
-extend elbow joint
anconeus O+I
O: -lateral supracondylar crest
-lateral and medial epicondyles of humerus
I: Lateral surface of proximal end of ulna (olecranon)
anconeus A
Extend elbow joint
Biceps brachii O+I
O: Supraglenoid tubercule
I: Ulnar and radial tuberosities
Biceps brachii A
-flex the elbow joint
-extend the shoulder joint
Brachialis O+I
O: Proximal third of the lateral surface of the humerus
I: Ulnar and radial tuberosities
Brachialis A
Flex the elbow joint
