Forearm Flashcards
pronator teres: Origin
humeral head: medial epicondyle of humerus (common flexor tendon)
ulnar head: coronoid process of the ulna
pronator teres: Insertion
radius
pronator teres: Nerve
median nerve
pronator teres: Action
pronation of forearm, flexes elbow
flexor carpi radialis: Origin
medial epicondyle of humerus (common flexor tendon)
flexor carpi radialis: Insertion
Bases of second and third metacarpal bones
flexor carpi radialis: Nerve
Median nerve
flexor carpi radialis: Action
Flexion and abduction at wrist
palmaris longus: Origin
medial epicondyle of humerus (common flexor tendon)
palmaris longus: Insertion
palmar aponeurosis
palmaris longus: Nerve
median nerve
palmaris longus: Action
wrist flexor
flexor carpi ulnaris: Origin
medial epicondyle of the humerus (common flexor tendon)
flexor carpi ulnaris: Insertion
pisiform
flexor carpi ulnaris: Nerve
muscular branches of ulnar nerve
flexor carpi ulnaris: Action
flexion and adduction of wrist
flexor digitorum superficialis: Origin
medial epicondyle of the humerus (common flexor tendon), as well as parts of the radius and ulna.
flexor digitorum superficialis: Insertion
phalanges
flexor digitorum superficialis: Nerve
median nerve
flexor digitorum superficialis: Action
flexor of fingers (primarily at proximal interphalangeal joints)
flexor policis longus: Origin
The middle 2/4 of the volar [disambiguation needed] surface of the radius and the adjacent interosseus membrane. (Also occasionally a small origin slightly on the medial epicondyle of the ulna.)
flexor policis longus: Insertion
The base of the distal phalanx of the thumb
flexor policis longus: Nerve
Anterior interosseous nerve (branch of median nerve) (C8, T1)
flexor policis longus: Action
Flexion of the thumb
flexor digitorum profundus: Origin
ulna
flexor digitorum profundus: Insertion
distal phalanges
flexor digitorum profundus: Nerve
median (anterior interosseous), muscular branches of ulnar
flexor digitorum profundus: Action
flex hand, interphalangeal joints
pronator quadratus: Origin
medial, anterior surface of the ulna
pronator quadratus: Insertion
lateral, anterior surface of the radius
pronator quadratus: Nerve
median nerve (anterior interosseous nerve)
pronator quadratus: Action
pronates the forearm
brachioradialis: Origin
Lateral supracondylar ridge of the humerus
brachioradialis: Insertion
Distal radius (Radial styloid process)
brachioradialis: Nerve
radial nerve
brachioradialis: Action
Flexion of forearm
extensor carpi radialis brevis: Origin
humerus at the anterior of lateral epicondyle (common extensor tendon)
extensor carpi radialis brevis: Insertion
base of the 3rd metacarpal
extensor carpi radialis brevis: Nerve
deep branch of the radial nerve
extensor carpi radialis brevis: Action
extensor and abductor of the hand at the wrist joint
extensor digitorum: Origin
lateral epicondyle (common extensor tendon)
extensor digitorum: Insertion
2nd-4th phalange
extensor digitorum: Nerve
posterior interosseous nerve (C7, C8)
extensor digitorum: Action
extension of hand and fingers
extensor digitorum minimi: Origin
the anterior portion of the lateral epicondyle of the humerus (common extensor tendon)
extensor digitorum minimi: Insertion
extensor expansion, located at the base of the proximal phalanx of the finger on the dorsal side
extensor digitorum minimi: Nerve
posterior interosseous nerve (C7, C8)
extensor digitorum minimi: Action
extends the little finger at all joints
extensor carpi ulnaris: Origin
Common extensor tendon (lateral epicondyle), ulna
extensor carpi ulnaris: Insertion
5th metacarpal
extensor carpi ulnaris: Nerve
posterior interosseous nerve (C7, C8)
extensor carpi ulnaris: Action
extends and adducts the wrist
anconeus: origin
Lateral epicondyle of the humerus
anconeus: Insertion
lateral surface of the olecranon process and the superior part of the posterior ulna
anconeus: Nerve
radial nerve (C7, C8, and T1)
anconeus: Action
partly blended in with the triceps, which it assists in extension of the forearm. Stabilises the elbow and abducts the ulna during pronation.
supinator: Origin
Lateral epicondyle of the humerus, supinator crest of ulna, radial collateral ligament, annular ligament
supinator: Insertion
Lateral proximal radial shaft
supinator: Nerve
deep branch of radial nerve (C7, C8)
supinator: Action
supinates forearm
abductor pollicis longus: Origin
ulna, radial styloid process
abductor pollicis longus: Insertion
first metacarpal
abductor pollicis longus: Nerve
posterior interosseous nerve (C7, C8)
abductor pollicis longus: Action
abduction, extension of thumb
extensor pollicis longus: Origin
ulna
extensor pollicis longus: Insertion
thumb, distal phalanx
extensor pollicis longus: Nerve
posterior interosseous nerve (C7, C8)
extensor pollicis longus: Action
extension of the thumb (metacarpophalangeal and interphalangeal)
extersor indicis: Origin
ulna
extersor indicis: Insertion
index finger (extensor hood)
extersor indicis: Nerve
posterior interosseous nerve (C7, C8)
extersor indicis: Action
extends index finger, wrist