Forearm Flashcards
Radioulnar Closed Packed Position
5 degrees of supination
what type of joint is RU
pivot
interosseus membrane
syndesmosis (slightly movable)
Pronator Teres
pronation and weak elbow flexor
most involved when flexing and pronating simultaneously
Pronator Quadratus
Pronation
PM when elbow is in extension
Supinator
PM Supinator
Radiocarpal Joint
condyloid, flexion/extension, radial/ulnar deviation, bi axial
Radiocarpal closed packed position
extension and radial deviation
Radiocarpal flexors
Flexor carpi radialis,
flexor carpi ulnaris,
palmaris longus
Radiocarpal extensors
extensor carpi radialis longus
extensor carpi radialis brevis
extensor carpi ulnaris
Radiocarpal Radial Deviation
Flexor carpi radialis,
extensor carpi radialis longus
extensor carpi radialis brevis
Radiocarpal ulnar deviation
flexor carpi ulnaris
extensor carpi ulnaris
Distal Interphalangeal Joint (DIP) and Proximal Interphalangeal Joint (PIP)
Hinge Joint
CPP: Full Extension
Uni axial
Intercarpal Joint
Gliding
Thumb
Saddle
3 DOF
CPP: Full Opposition
Carpometacarpal
5 of them (1 is thumb, 5 is pinky)
gliding/plane
2-5
metacarpophalangeal
knuckles
condyloid
CPP: full flexion
2 DOF
Joint Action Thumbs
Flexion/extension
Abduction/Adduction
Oppositon/Reposition
Joint Action Fingers
flexion/extension
abduction/adduction
Finger Flexors
Flexor Digitorum superficialis
Flexor digitorum profundus
Finger Extensors
Extensor digitorum 2-5
Extensor indicis 2
Extensor digiti minimi 5
Muscles of the Thumb
Flexor pollicis longus
Extensor pollicis longus
Extensor pollicis brevis
Abductor pollicis longus
