week 3 sem 2 Flashcards
list the carpals
She Looks Too Pretty Try To Catch Her
scaphoid
lunate
triquetrum
pisiform
trapezium ( near the thumb)
trapezoid
capitate
hamate
pisiform can only be seen
anteriorly
hook of hammate can only be seen
anteriorly
radiocarpal joint classification
synovial biaxial ellipsoid
radiocarpal joint articular surfaces
distal end of radius
distal radioulnar joint articular disc
proximal row of carpals (not pisiform)
radiocarpal joint- triangluar fibrocartliage complex
complex of ligaments and catliage
- distal radioulnar joint articular disc
- ligaments
functions:
- stabilise distal radioulnar joint
- transmitt and distrubute load form carpals to ulna
- helps to facilitate complex wrist movment
palmer radiocarpal ligament where and funtion
from radius to carpal bones anteriorly
limits extension of the hand
ensures that the hand moves with the forearm during pronation and supernation
dorsal radiocarpal ligament where and funtion
from radius to carpal bones on posteior side of hand
funtion
-ensures that the hand moves with the forearm during pronation and supernation
radial collateral ligament where and funtion
from styloid process of radius to scaphoid and trapezium
funtion
- limit adduction of the hand
ulnar collateral ligament where and funtion
from styloid process of ulnar to triqueetrum and pisiform
funtion
- limits abduction of the hand
midcarpal joint classification
synovial compound joint
midcarpal joint articular surfaces
proximal row of carpals
disatal row of carpals
palmer ntercarpal ligaments
converges onto capitatae
funtion= limit extension of the hand
dosal intercarpal ligament
limits flexion of the hand
major contributions to movement by joints
flexion: midcarpal
extension: radiocarpal
abduction: radiocarpal
adduction: midcarpal