UL Arm-hand muscles and ligaments Flashcards
THUMB
Abductor pollicis longus origin and insertion
O: Posterior surface of radius and Ulna, interosseous membrane.
I: Base of 1st metacarpal
THUMB
Extensor policis longus origin and insertion
O: Posterior surface of ulna and interosseous membrane
I: base of distal phalanx of the thumb.
THUMB
Extensor policis brevis origin and insertion
O: Posterior surface of radius and interosseous membrane
I: Base of proximal phalanx of thumb
PALM OF THUMB
Abductor pollicis brevis origin and insertion
O: flexor retinaculum, trapezium and scaphoid tubercles
I: base of Proximal phalanx of 1st metatarsal – can feel with Abduction
PALM OF THUMB
Flexor pollicis brevis origin and insertion
O: flexor retinaculum
I: Base of proximal phalanx of thumb – but more palmar side
PALM OF THUMB
Opponens Pollicis origin and insertion
O: Flexor retinaculm
I: Attaches to entire length of 1st metacarpal bone
PALM OF THUMB
Adductor pollicis origin and insertion
O: capitate and 2,3rd metacarpal
I: Base of proximal phalanx of thumb
3 extensors of wrist
Extensor carpi radialis long and brevis
Extensor digitorem
Extensor Carpi Ulnaris
Extensor carpi radialis longus origin and insertion
O: Supracondylar ridge on lateral side of humerus.
I: Base of 2nd metacarpal
Extensor carpi radialis brevis origin and insertion
O: Lateral epicondyle of humerus.
I: Base of the 3rd metacarpal
Extensor digitorem origin and insertion
O: Lateral epicondyle of humerus.
I: Middle and distal phalanges of digits 2,3,4,and 5
Extensor Carpi Ulnaris origin and insertion
O: Lateral epicondyle of humerus.
I: Base of the 5th metacarpal
5 flexors of the wrist
Flexor carpi radialis palmaris longus flexor carpi ulnaris Flexor digitorum superficialis Flexor digitorum profundus
Flexor Carpi radialis origin and insertion
O: medial epicondyle of the humerus
I: base of 2nd and 3rd metacarpal.
Palmaris longus origin and insertion
O: medial epicondyle of the humerus
I: Palmar fascia