Forearm (posterior) Flashcards
brachioradialis (insertion)
radius
brachioradialis (origin)
lateral supracondylar ridge of humerus
brachioradialis (innervation)
radial nerve
brachioradialis (action)
flexes forearm
extensor carpi radialis longus (origin)
lateral supracondylar ridge of humerus
extensor carpi radialis longus (insertion)
Metacarpal
extensor carpi radialis longus (innervation)
radial nerve
extensor carpi radialis longus (action)
extends and abducts wrist
extensor carpi radialis brevis (origin)
lateral epicondyles of humerus (via common extensor tendon)
extensor carpi radialis brevis (insertion)
Metacarpal
extensor carpi radialis brevis (innervation)
radial nerve
extensor carpi radialis brevis (action)
extends and abducts the wrist
extensor digitorum (origin)
lateral epicondyle of humerus (common extensor tendon)
extensor digitorum (insertion)
digit 2-5 via extensor expansion
extensor digitorum (innervation)
radial nerve
extensor digitorum (action)
extends wrist and digit 2-5
extensor digiti minimi (origin)
lateral epicondyle of humerus (common extensor tendon)
extensor digiti minimi (innervation)
radial nerve
extensor digiti minimi (insertion)
digit 5 via extensor expansion
extensor digiti minimi (action)
extends digit 5 (little finger)
extensor carpi ulnaris (origin)
lateral epicondyle of humerus (common extensor tendon)
extensor carpi ulnaris (insertion)
Metacarpal
extensor carpi ulnaris (innervation)
radial nerve
extensor carpi ulnaris (action)
extends and adducts wrist
supinator (origin)
lateral epicondyle of humerus (common extensor tendon)
supinator (insertion)
radius
supinator (innervation)
radial nerve
supinator (action)
supinates forearm
abductor pollicis longus (origin)
ulna (midshaft)
radius (midshaft)
interosseous membrane
abductor pollicis longus (insertion)
1st metacarpal
abductor pollicis longus (innervation)
radial nerve
abductor pollicis longus (action)
abducts thumb
extensor pollicis longus (origin)
ulna (distal shaft)
interosseous membrane
extensor pollicis longus (insertion)
distal phalanx of thumb
extensor pollicis longus (innervation)
radial nerve
extensor pollicis longus (action)
extends thumb
extensor pollicis brevis (origin)
radius (distal shaft)
interosseous membrane
extensor pollicis brevis (insertion)
proximal phalanx of thumb
extensor pollicis brevis (innervation)
radial nerve
extensor pollicis brevis (action)
extends thumb
extensor indicis (origin)
ulna (distal shaft)
interosseous membrane
extensor indicis (insertion)
digit 2 (index finger) via extensor expansion
extensor indicis (innervation)
radial nerve
extensor indicis (action)
extends index finger