Term
| Extensor carpi radialis brevis Origin |
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Definition
| O: Lateral epicondyle of humerus |
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Term
| Extensor carpi radialis brevis Insertion |
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Definition
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Term
| Extensor carpi radialis brevis Action |
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Definition
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Term
| Extensor carpi radialis brevis Innervation |
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Definition
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Term
| Extensor carpi radialis longus Origin |
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Definition
| O: Lateral epicondyle of humerus |
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Term
| Extensor carpi radialis longus Insertion |
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Definition
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Term
| Extensor carpi radialis longus Action |
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Definition
| A: Extends wrist, radial deviation |
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Term
| Extensor carpi radialis longus Innervation |
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Definition
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Term
| Extensor carpi ulnaris Origin |
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Definition
| O: Lateral epicondyle of humerus |
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Term
| Extensor carpi ulnaris Insertion |
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Definition
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Term
| Extensor carpi ulnaris Action |
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Definition
| A: Extends wrist, ulnar deviation |
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Term
| Extensor carpi ulnaris Innervation |
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Definition
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Term
| Extensor digiti minimi Origin |
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Definition
| O: Lateral epicondyle of humerus |
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Term
| Extensor digiti minimi Insertion |
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Definition
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Term
| Extensor digiti minimi Action |
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Definition
| A: Extends & abducts little finger |
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Term
| Extensor digiti minimi Innervation |
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Definition
| N: Radial (posterior interosseous) |
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Term
| Extensor digitorum Origin |
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Definition
| O: Lateral epicondyle of humerus |
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Term
| Extensor digitorum Insertion |
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Definition
| I: Phalanges II – V (middle & distal dorsal) |
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Term
| Extensor digitorum Action |
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Definition
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Term
| Extensor digitorum Innervation |
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Definition
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Term
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Definition
| O: Posterior ulna, interosseousmembrane |
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Term
| Extensor indicis Insertion |
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Definition
| I: Middle & Distal phalanges II |
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Term
|
Definition
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Term
| Extensor indicis Innervation |
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Definition
| N: Radial (posterior interosseous ) |
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Term
| Extensor pollicis brevis Origin |
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Definition
| O: Radius, interosseus membrane |
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|
Term
| Extensor pollicis brevis Insertion |
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Definition
|
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Term
| Extensor pollicis brevis Action |
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Definition
| A: Extends proximal phalanx I |
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Term
| Extensor pollicis brevis Innervation |
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Definition
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Term
| Extensor pollicis longus Origin |
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Definition
| O: Ulna, interosseous membrane |
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Term
| Extensor pollicis longus Insertion |
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Definition
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Term
| Extensor pollicis longus Action |
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Definition
| A: Extends distal phalanx I |
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Term
| Extensor pollicis longus Innervation |
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Definition
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Term
| Flexor carpi radialis Origin |
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Definition
| O: Medial epicondyle of humerus |
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Term
| Flexor carpi radialis Insertion |
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Definition
| I: Base of Metacarpals II and III |
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Term
| Flexor carpi radialis Action |
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Definition
| A: Flexion of wrist, hand abduction |
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Term
| Flexor carpi radialis Innervation |
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Definition
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Term
| Flexor carpi ulnaris Origin |
|
Definition
| O: Medial epicondyle of humerus |
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|
Term
| Flexor carpi ulnaris Insertion |
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Definition
| I: Pisiform, hamate, metacarpal V |
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|
Term
| Flexor carpi ulnaris Action |
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Definition
| A: Flexes wrist, hand adduction |
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Term
| Flexor carpi ulnaris Innervation |
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Definition
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Term
| Flexor digitorum profundus Origin |
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Definition
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Term
| Flexor digitorum profundus Insertion |
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Definition
| I: Distal phalanges II – V |
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Term
| Flexor digitorum profundus Action |
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Definition
| A: Flexes distal interphalangeal Joints (**the only muscle that does this ) |
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Term
| Flexor digitorum profundus Innervation |
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Definition
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Term
| Flexor digitorum superficialis Origin |
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Definition
| O: Medial epicondyle of humerus |
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|
Term
| Flexor digitorum superficialis Insertion |
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Definition
| I: Middle phalanges II – V |
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Term
| Flexor digitorum superficialis Action |
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Definition
| A: Flexes interphalangeal joints; also involved in flexion of wrist |
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Term
| Flexor digitorum superficialis Innervation |
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Definition
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|
Term
| Flexor pollicis longus Origin |
|
Definition
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|
Term
| Flexor pollicis longus Insertion |
|
Definition
|
|
Term
| Flexor pollicis longus Action |
|
Definition
| A: Flexes phalanges of thumb |
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Term
| Flexor pollicis longus Innervation |
|
Definition
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|
Term
|
Definition
| O: Medial epicondyle of humerus |
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Term
| Palmaris longus Insertion |
|
Definition
| I: Flexor retinaculum (over) |
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Term
|
Definition
| A: Weak flexor, absent in 14% of people |
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Term
| Palmaris longus Innervation |
|
Definition
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|
Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
|
Definition
| posterior interosseous nerve (a continuation of the deep branch of the Radial nerve) |
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|
Term
|
Definition
| medial epichondyle os humerus; coronoid process of ulna |
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Term
|
Definition
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|
Term
|
Definition
| pronation of forearm (Palm forward to back); synergist to pronator quadratus) |
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Term
| Pronator teres Innervation |
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Definition
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|
Term
| Pronator quadratus Origin |
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Definition
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|
Term
| Pronator quadratus Insertion |
|
Definition
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|
Term
| Pronator quadratus Action |
|
Definition
| Agonist for pronation of forearm and hand; resists separation of radius and ulna |
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Term
| Pronator quadratus Innervation |
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Definition
| median nerve and anterior interosseous nerve (roots C8-T1 with T1 being primary) |
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Term
| Palmar interosseus Origin |
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Definition
| O: Metacarpals I, II, IV, V |
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|
Term
| Palmar interosseus Insertion |
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Definition
| I: Proximal phalanges II, IV, V |
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|
Term
| Palmar interosseus Action |
|
Definition
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|
Term
| Palmar interosseus Innervation |
|
Definition
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|
Term
|
Definition
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Term
| Opponens pollicis Insertion |
|
Definition
| I: Metacarpal I (radial side) |
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|
Term
|
Definition
| A: Opposes thumb to fingertips (adds in flexion) |
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|
Term
| Opponens pollicis Innervation |
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Definition
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|
Term
| Opponens digiti minimi Origin |
|
Definition
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Term
| Opponens digiti minimi Insertion |
|
Definition
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|
Term
| Opponens digiti minimi Action |
|
Definition
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|
Term
| Opponens digiti minimi Innervation |
|
Definition
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|
Term
|
Definition
| O: Tendons of flexor digitorum profundus |
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|
Term
|
Definition
| I: Proximal phalanges II – V |
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|
Term
|
Definition
| A: Flex MCP joints & extends Interphalangeal joints |
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|
Term
|
Definition
| N: first and second median; third and fourth deep ulnar |
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|
Term
| Flexor digiti minimi brevis Origin |
|
Definition
|
|
Term
| Flexor digiti minimi brevis Insertion |
|
Definition
|
|
Term
| Flexor digiti minimi brevis Action |
|
Definition
| A: Flexes little finger at MCP Joint |
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|
Term
| Flexor digiti minimi brevis Innervation |
|
Definition
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|
Term
| Abductor digiti minimi Origin |
|
Definition
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|
Term
| Abductor digiti minimi Insertion |
|
Definition
| I: Proximal phalanx V (base) |
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|
Term
| Abductor digiti minimi Action |
|
Definition
| A: Abducts little finger (as in spreading fingers apart) |
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|
Term
| Abductor digiti minimi Innervation |
|
Definition
|
|
Term
| Flexor pollicis Brevis Origin |
|
Definition
| O: Trapezium, Flexor retinaculum |
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|
Term
| Flexor pollicis brevis Insertion |
|
Definition
| I: Proximal phalanx I (base) |
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|
Term
| Flexor pollicis brevis Action |
|
Definition
| A: Flexes MCP joint of thumb |
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|
Term
| Flexor pollicis brevis Innervation |
|
Definition
| N: Recurrent median, deep ulnar |
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|
Term
| abductor pollicis Brevis Origin |
|
Definition
| O: Flexor retinaculum (scaphoid & trapezium) |
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|
Term
| abductor pollicis brevis Insertion |
|
Definition
| I: Proximal phalanx I (base) |
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|
Term
| Abductor pollicis brevis Action |
|
Definition
|
|
Term
| Abductor pollicis brevis Innervation |
|
Definition
| N: Recurrent median nerve |
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|
Term
| abductor pollicis longus Origin |
|
Definition
| O: Radius and Ulna, interosseus membrane |
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|
Term
| abductor pollicis longus Insertion |
|
Definition
| I: Trapezium, base of metacarpal I |
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|
Term
| Abductor pollicis longus Action |
|
Definition
| A: Abducts thumb, extends at carpometacarpal joint |
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|
Term
| Abductor pollicis longus Innervation |
|
Definition
|
|
Term
|
Definition
| O: Transverse head: anterior third metacarpal; Oblique head: bases of second and third metacarpals (trapezoid and Capitate) |
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|
Term
| abductor pollicis Insertion |
|
Definition
|
|
Term
|
Definition
| A: Draws thumb towards Palm (adduction & flexion) |
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|
Term
| Abductor pollicis Innervation |
|
Definition
|
|
Term
| Dorsal Interosseus Origin |
|
Definition
|
|
Term
| Dorsal Interosseus Insertion |
|
Definition
| I: Proximal phalanges II – IV |
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|
Term
| Dorsal Interosseus Action |
|
Definition
|
|
Term
| Dorsal Interosseus Innervation |
|
Definition
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|
