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85 Terms
Brachioradialis
Origin: Lateral supracondylar crest of humerus
Brachioradialis
Insertion: Styloid process of radius
Brachioradialis
Action: Flexes forearm
Brachioradialis
Innervation: Radial nerve
Extensor carpi radialis longus
Origin: Lateral supracondylar crest of humerus
Extensor carpi radialis longus
Insertion: Base of metacarpal 2
Extensor carpi radialis longus
Action: Extends hand & abducts hand
Extensor carpi radialis longus
Innervation: Radial nerve
Extensor carpi radialis brevis
Origin: Lateral epicondyle of humerus
Extensor carpi radialis brevis
Insertion: Base of metacarpal 3
Extensor carpi radialis brevis
Action: Extends hand & abducts hand
Extensor carpi radialis brevis
Innervation: Radial nerve
Extensor digitorum
Origin: Lateral epicondyle of humerus
Extensor digitorum
Insertion: Distal phalanges of digits 2–5
Extensor digitorum
Action: Extends hand & digits 2–5
Extensor digitorum
Innervation: Radial nerve
Extensor digiti minimi
Origin: Lateral epicondyle of humerus
Extensor digiti minimi
Insertion: Distal phalanx of digit 5
Extensor digiti minimi
Action: Extends hand & digit 5
Extensor digiti minimi
Innervation: Radial nerve
Extensor carpi ulnaris
Origin: Lateral epicondyle of humerus & posterior ulna
Extensor carpi ulnaris
Insertion: Base of metacarpal 5
Extensor carpi ulnaris
Action: Extends hand & adducts hand
Extensor carpi ulnaris
Innervation: Radial nerve
Supinator
Origin: Lateral epicondyle of humerus & olecranon
Supinator
Insertion: Proximal radius
Supinator
Action: Supinates forearm
Supinator
Innervation: Radial nerve
Abductor pollicis longus
Origin: Posterior radius, ulna & interosseous membrane
Abductor pollicis longus
Insertion: Base of metacarpal 1
Abductor pollicis longus
Action: Abducts thumb & hand
Abductor pollicis longus
Innervation: Radial nerve
Extensor pollicis brevis
Origin: Posterior radius & interosseous membrane
Extensor pollicis brevis
Insertion: Proximal phalanx of thumb
Extensor pollicis brevis
Action: Extends proximal phalanx of thumb
Extensor pollicis brevis
Innervation: Radial nerve
Extensor pollicis longus
Origin: Posterior ulna & interosseous membrane
Extensor pollicis longus
Insertion: Distal phalanx of thumb
Extensor pollicis longus
Action: Extends distal phalanx of thumb
Extensor pollicis longus
Innervation: Radial nerve
Extensor indicis
Origin: Posterior ulna & interosseous membrane
Extensor indicis
Insertion: Posterior surface of index finger
Extensor indicis
Action: Extends index finger & hand
Extensor indicis
Innervation: Radial nerve
Pronator teres
Origin: Medial epicondyle of humerus
Pronator teres
Insertion: Lateral radius
Pronator teres
Action: Pronates forearm
Pronator teres
Innervation: Median nerve
Flexor carpi radialis
Origin: Medial epicondyle of humerus
Flexor carpi radialis
Insertion: Base of metacarpals 2 & 3
Flexor carpi radialis
Action: Flexes & abducts hand
Flexor carpi radialis
Innervation: Median nerve
Palmaris longus
Origin: Medial epicondyle of humerus
Palmaris longus
Insertion: Palmar aponeurosis
Palmaris longus
Action: Flexes hand
Palmaris longus
Innervation: Median nerve
Flexor carpi ulnaris
Origin: Medial epicondyle of humerus
Flexor carpi ulnaris
Insertion: Base of metacarpal 5, hamate & pisiform
Flexor carpi ulnaris
Action: Flexes & adducts hand
Flexor carpi ulnaris
Innervation: Ulnar nerve
Flexor digitorum superficialis
Origin: Medial epicondyle, coronoid process, anterior radius
Flexor digitorum superficialis
Insertion: Middle phalanges of digits 2–5
Flexor digitorum superficialis
Action: Flexes hand & digits 2–5
Flexor digitorum superficialis
Innervation: Median nerve
Flexor digitorum profundus
Origin: Anterior ulna & interosseous membrane
Flexor digitorum profundus
Insertion: Distal phalanges of digits 2–5
Flexor digitorum profundus
Action: Flexes hand & digits 2–5
Flexor digitorum profundus
Innervation: Median & Ulnar nerves
Flexor pollicis longus
Origin: Anterior radius & interosseous membrane
Flexor pollicis longus
Insertion: Distal phalanx of thumb
Flexor pollicis longus
Action: Flexes hand & thumb
Flexor pollicis longus
Innervation: Median nerve
Pronator quadratus
Origin: Anterior surface of distal ulna
Pronator quadratus
Insertion: Anterior surface of distal radius
Pronator quadratus
Action: Pronates forearm
Pronator quadratus
Innervation: Median nerve
Common nerve for superficial extensor muscles
Radial nerve
Common origin for superficial extensor muscles
Lateral epicondyle of the humerus
Common action of extensor forearm muscles
Extension of the wrist and fingers
Common nerve for most flexor muscles
Median nerve
Common origin for most flexor muscles
Medial epicondyle of the humerus
Common action of flexor forearm muscles
Flexion of the wrist and fingers
Pronator muscles of the forearm
Pronator teres and Pronator quadratus
Flexor muscle innervated by ulnar nerve
Flexor carpi ulnaris
Muscle group responsible for thumb movements
Deep extensor muscles (abductor pollicis longus, extensor pollicis brevis, extensor pollicis longus)