UL Origins, Insertions, and Innervations 2 Flashcards
Supinator - Origin
Lateral epicondyle of humerus, supinator crest of ulna
Supinator - Insertion
Proximal third of radius
Supinator - Innervation
Posterior interosseous nerve
Pronator teres - Origin
Humeral head - medial supracondylar ridge of humerus
Ulna head - coronoid process of ulna
Pronator teres - Insertion
Lateral surface of radius
Pronator teres - Innervation
Median nerve
Pronator quadratus - Origin
Distal anterior surface of ulna
Pronator quadratus - Insertion
Distal anterior surface of radius
Pronator quadratus - Innervation
Median nerve
Flexor carpi radialis - Origin
Medial epicondyle of humerus
Flexor carpi radialis - Insertion
Base of MCPs 2-3
Flexor carpi radialis - Innervation
Median nerve
Flexor carpi ulnaris - Origin
Medial epicondyle of humerus, olecranon of ulna
Flexor carpi ulnaris - Insertion
Pisiform, hamate, base of MCP 5
Flexor carpi ulnaris - Innervation
Ulnar nerve
Palmaris longus - Origin
Medial epicondyle of humerus
Palmaris longus - Insertion
Palmar aponeurosis
Palmaris longus - Innervation
Median nerve
Extensor carpi radialis longus - Origin
Lateral supracondylar ridge of humerus
Extensor carpi radialis longus - Insertion
Dorsal aspect of base of MCP 2
Extensor carpi radialis longus - Innervation
Radial nerve
Extensor carpi radialis brevis - Origin
Lateral epicondyle of humerus
Extensor carpi radialis brevis - Insertion
Dorsal aspect of base of MCP 3
Extensor carpi radialis brevis - Innervation
Radial nerve
Extensor carpi ulnaris - Origin
Lateral epicondyle of humerus, posterior border of ulna
Extensor carpi ulnaris - Insertion
Base of MCP 5
Extensor carpi ulnaris - Innervation
Posterior interosseous nerve
Flexor digitorum superficialis - Origin
Humeroulnar head - Medial epicondyle of humerus, coronoid process of ulna
Radial head - proximal half on anterior third of radius
Flexor digitorum superficialis - Insertion
Palmar surface of middle phalanges of digits 2-5
Flexor digitorum superficialis - Innervation
Median nerve
Flexor digitorum profundus - Origin
Proximal half of of ulna, interosseous membrane
Flexor digitorum profundus - Insertion
Palmar surface of distal phalanges of digits 2-5
Flexor digitorum profundus - Innervation
Digits 2, 3, and radial half of 4 - Median nerve
Digits ulnar half of 4 and 5 - Ulnar nerve
Extensor digitorum - Origin
Lateral epicondyle of humerus
Extensor digitorum - Insertion
Extensor expansions of digits 2-5
Extensor digitorum - Innervation
Posterior interosseous nerve
Extensor indicis - Origin
Distal third of ulna, interosseous membrane
Extensor indicis - Insertion
Extensor expansion of index finger
Extensor indicis - Innervation
Posterior interosseous nerve
Extensor digiti minimi - Origin
Lateral epicondyle of humerus
Extensor digiti minimi - Insertion
Extensor expansion of digit 5
Extensor digiti minimi - Innervation
Posterior interosseous nerve
Lumbricals - Origin
Tendons of flexor digitorum profundus muscle
Lumbricals - Insertion
Extensor expansion of hand
Lumbricals - Innervation
Lumbricals 1-2 - Median nerve
Lumbricals 3-4 - Ulnar nerve
Dorsal interossei - Origin
Adjacent sides of MCPs 1-5
Dorsal interossei - Insertion
1 and 2 - Radial bases of proximal phalanges of digits 2 and 3
3 and 4 - Ulnar bases of proximal phalanges of digits 3 and 4
Dorsal interossei - Innervation
Deep branch of ulnar nerve
Palmar interossei - Origin
Ulnar side of MCP 2, Radial side of MCPs 4 and 5
Palmar interossei - Insertion
1 - ulnar base of proximal phalanx of digit 2
2 - radial base of proximal phalanx of digits 4 and 5
Palmar interossei - Innervation
Deep branch of ulnar nerve
Abductor digiti minimi - Origin
Pisiform
Abductor digiti minimi - Insertion
Ulnar side of base of proximal phalanx of digit 5
Abductor digiti minimi - Innervation
Deep branch of ulnar nerve