Muscle Attachments- Upper Extremity Flashcards
Pectoralis Minor
from ribs 3-5 to the coracoid process of the scapula
Rhomboids
from the lower cervical & upper thoracic spinous processes to the medial border of the scapula
Serratus Anterior
from the upper 8-10 ribs to the deep, medial border of the scapula
Trapezius
from the superior nuchal line, external occipital protuberance, ligamentum nuchae, & cervical & thoracic spinous processes to the clavicle, acromion & scapular spine
Deltoid
from the clavicle, acromion & spine of the scapula to the deltoid tuberosity of the humerus
Subscapularis
from the subscapular fossa to the lesser tubercle of the humerus
Supraspinatus
from the supraspinous fossa to the greater tubercle of the humerus
Teres Major
from the inferior angle of the scapula to the medial lip of the intertubercular sulcus of the humerus
Infraspinatus
from the infraspinous fossa to the greater tubercle of the humerus
Teres Minor
from the lateral border of the scapula to the greater tubercle of the humerus
Biceps Brachii
from coracoid process (short head) and supraglenoid tubercle (long head) of the scapula to the radial tuberosity & the deep antebrachial fascia (through the bicipital aponeurosis)
Brachialis
from the distal anterior shaft of the humerus to the coronoid process & ulnar tuberosity
Coracobrachialis
from the coracoid process to the proximal medial shaft of the humerus
Triceps Brachii
from the infraglenoid tubercle of the scapula (long head), & proximal posterolateral (lateral head) & distal posteromedial (medial) shaft of the humerus to the olecranon process of the ulna
Abductor Pollicis Longus
from proximal posterior radius, ulna & interosseous membrane to the anterior base of the 1st metacarpal & trapezium
Brachioradialis
from the lateral supracondylar ridge of the humerus to the distal radius adjacent to the styloid process
Extensor carpi radialis brevis
from the lateral epicondyle of the humerus (common extensor origin) to the base of the 3rd metacarpal
Extensor carpi radialis longus
from the lateral supracondylar ridge of the humerus to the base of the 2nd metacarpal
Extensor carpi ulnaris
from the lateral epicondyle of the humerus (common extensor origin) to the base of the 5th metacarpal
Extensor digitorum
from the lateral epicondyle of the humerus (common extensor origin) to the extensor expansions of digits 2-5
Extensor digiti minimi
from the lateral epicondyle of the humerus (common extensor origin) to the digital expansion of the 5th digit
Extensor indicis
from the posterior surface of the ulna & interosseous membrane to the digital expansion of the 2nd digit
Extensor pollicis brevis
from the posterior radial surface & interosseous membrane to the base of the 1st proximal phalanx
Extensor pollicis longus
from the middle 1/3rd of the posterior surface of the ulna & interosseous membrane to the base of the 1st distal phalanx
Flexor carpi radialis
from the medial epicondyle (common flexor origin) to the palmar aspect of the bases of the 2nd & 3rd metacarpals
Flexor carpi ulnaris
from the medial epicondyle (common flexor origin) of the humerus and proximal ulnar shaft to the pisiform
Flexor digitorum profundus
from the anterior proximal 2/3rds of the ulna & interosseous membrane to the base of the distal phalanges of digits 2-5
Flexor digitorum superficialis
from the medial epicondyle (common flexor origin) of the humerus to the sides of the middle phalanges of digits 2-5
Flexor pollicis longus
from the anterior surface of the radius & interosseous membrane to the the base of the distal phalanx of the thumb
Palmaris longus
from the medial epicondyle of the humerus (common flexor origin) to the palmar aponeurosis
Pronator Quadratus
from the anterior surface of the distal radius to the anterior surface of the distal ulna
Pronator Teres
from the medial epicondyle & ulnar coronoid process to lateral aspect of the radius
Supinator
from the lateral epicondyle of the humerus, radial collateral ligament & shaft (supinator crest) of the ulna to the lateral surface of the proximal radius
Abductor digiti minimi
from the pisiform to the ulnar side of the base of the 5th digit
Abductor pollicis brevis
from the flexor retinaculum to the radial side of the base of the proximal phalanx of the thumb
Adductor pollicis
from the capitate & 2nd & 3rd metacarpals (oblique head) and the palmar aspect of the 3rd metacarpal to the base of the proximal phalanx of the thumb
Dorsal interossei
from the adjacent sides of the metacarpals to the proximal phalangeal bases and dorsal digital expansions of digits 2-4
Flexor digiti minimi brevis
from the hamate to the ulnar side of the base of the proximal phalanx of the 5th digit
Flexor pollicis brevis
from the flexor retinaculum & trapezium to the radial side of the base of the proximal phalanx of the thumb
Lumbricals
from the tendons of the flexor digitorum profundus to the radial side of the dorsal digital expansions of digits 2-5
Opponens digiti minimi
from the hook of the hamate to the ulnar margin of the shaft of the 5th metacarpal
Opponens pollicis
from the flexor retinaculum & trapezium to the palmar surface of the 1st metacarpal
Palmar Interossei
from the palmar aspects of metacarpals 2, 4 & 5 to the dorsal digital expansions of digits 2, 4 & 5
