practical Flashcards
supraspinatus origin
supraspinatus fossa of scapula
supraspinatus insertion
greater tubercle of humerus
supraspinatus action
abducts and stabilizes arm at shoulder
infraspinatus origin
infraspinatus fossa of scapula
infraspinatus insertion
greater tubercle of humerus
infraspinatus action
laterally rotates, transversely abducts, and stabilizes at shoulder
teres minor origin
posterior aspect of superior 1/2 of lateral border of scapula
teres minor insertion
greater tubercle of humerus
teres minor action
laterally rotates, transversely abducts, and stabilizes at shoulder
subscapularis origin
subscapular fossa of scapula
subscapularis insertion
lesser tubercle of humerus
subscapularis action
medially rotates and stabilizes arm at shoulder
serratus anterior origin
external surfaces of 1st to 9th ribs
serratus anterior insertion
medial border of scapula
serratus anterior action
protracts and upwardly rotates shoulder
deltoid origin
lateral 1/3 clavicle, acromion and spine of scapula
deltoid insertion
deltoid tuberosity of humerus
deltoid action
abducts, flexes, extends, medially and laterally rotates arm at shoulder
coracobrachialis origin
coracoid process of scapula
coracobrachialis insertion
middle 1/3 of medial aspect of humerus
coracobrachialis action
adducts and flexes arm at shoulder
pec major origin
anterior aspects of medial half of clavicle, manubrium, sternal body and true ribs and their costal cartilage
pec major insertion
crest of greater tubercle of humerus
pec major action
adducts, medially rotates, and transversely adducts arm at shoulder
pec minor origin
anterior aspects of 3rd-5th ribs
pec minor insertion
coracoid process of scapula
pec minor action
protracts and downwardly rotates pectoral girdle
bicep brachii origin
supraglenoid tubercle of scapula and apex of acromion of scapula
bicep brachii insertion
radial tuberosity and antebrachial fascia
bicep brachii action
supinates forearm, flexes forearm at elbow
latissimus dorsi origin
spinous processes of T7-T12, spinous processes of L1-L5 via thoracolumbar fascia, 9th-12th ribs, iliac crest
latissimus dorsi insertion
floor of intertubercular sulcus of humerus
latissimus dorsi action
adducts, medially rotates, and extends arm at shoulder
rhomboid origin
nuchal ligament, spinous processes C7-T5
rhomboid insertion
medial border of scapula
rhomboid action
retracts and downwardly rotates shoulder
triceps origin
posterior surface of humerus and infraglenoid tubercle of scapula
triceps insertion
olecranon process of ulna and antebrachial fascia
triceps action
extends forearm at elbow
teres major origin
Posterior surface of inferior angle of scapula
teres major insertion
crest of lesser tubercle of humerus
teres major action
adducts and medially rotates arm at shoulder
anconeus origin
posterior aspect of lateral epicondyle of humerus
anconeus insertion
olecranon, proximal end of body of ulna
anconeus action
extends elbow at forearm
pronator teres origin
Medial supracondylar ridge of humerus via common extensor tendon and medial aspect of coronoid process of ulna
pronator teres insertion
middle 1/3 of anterolateral aspect of radius
pronator teres action
pronates forearm at radioulnar joint
flexor carpi radialis origin
medial epicondyle of humerus via common flexor tendon
flexor carpi radialis insertion
palmar surface of base of metacarpals II and III
flexor carpi radialis action
flexes hand at wrist, abducts hand at radiocarpal and midcarpal joints
brachialis origin
anterior aspect of distal half of humerus
brachialis origin
coronoid process and tuberosity of ulna
brachialis action
flexes arm at forearm
flexor carpi ulnaris origin
medial epicondyle of humerus via common flexor tendon, proximal 2/3 of body of ulna, olecranon of ulna
flexor carpi ulnaris insertion
pisiform, hook of hamate, palmar aspect of base of 5th metacarpal bone
flexor carpi ulnaris action
flexes and adducts hand at wrist
flexor digitorum superficialis origin
medial epicondyle of humerus via common flexor tendon, sublime tubercle of ulna, and proximal 1/2 anterior border of radius
flexor digitorum superficialis insertion
palmar aspects of the bodies of middle phalnages of the index, middle, ring, and pinky fingers
flexor digitorum superficialis action
flexes index, middle, ring, and pinky fingers
flexor digitorum profundus origin
medial aspect of coronoid process of ulna and superior 3/4 of anterior and medial surfaces of ulna