Flexors and Extensors - Attachments and Actions Flashcards
Extensor carpi radialis origin –> insertion
lateral supracondylar crest (humerus) –> dorsal MC II and III
Extensor carpi radialis action
extend carpus
common digital extensor origin –> insertion
lateral epicondyle –> extensor process, distal phalanges of digits II - V
common digital extensor action
extend carpus and digits
lateral digital extensor origin –> insertion
lateral epicondyle –> extensor process, distal phalanges of digits III-V
lateral digital extensor action
extend carpus and digits
Ulnaris lateralis origin –> insertion
lateral epicondyle –> MC V and accessory carpal bone
ulnaris lateralis action
abduct, extend carpus
abductor pollicis longus origin –> insertion
ulna –> MC I
abductor pollicis longus action
abduct pollex (dew claw)
supinator origin –> insertion
lateral epicondyle –> radius
supinator action
supination (duh)
pronator teres origin –> insertion
medial epicondyle –> radius
pronator action
pronation
flexor carpi radialis origin –> insertion
medial epicondyle –> palmar MC II and III
flexor carpi radialis action
flex carpus
superficial digital flexor origin –> insertion
medial epicondyle –> palmar surface, middle phalanges of digits II-V
superficial digital flexor action
flex carpus and proximal interphalangeal joints
flexor carpi ulnaris origin –> insertion
ulnar head - olecranon, humeral head - medial epicondyle –> accessory carpal bone
flexor carpi ulnaris action
flex carpus
deep digital flexor origins
humeral head - medial epicondyle
radial head - radius
ulnar head - ulna
deep digital flexor insertion
palmar surface, distal phalanges of digits I-V
deep digital flexor action
flex carpus and digits
pronator quadratus attachments
opposed surfaces of radius and ulna
