ligaments of the wrist Flashcards
what do the wrist ligaments do
provide support for all the joints and also contribute to motion of the wrist by application of passive forces
dorsal surface ligament
dorsal radiocarpal ligament
dorsal radiocarpal ligament
passes from radial styloid process to the lunate and triquetrum
is a thickening of the capsule
primary function of the radiocarpal ligament
maintain contact b/w the lunate and the radius
when is the dorsal radiocarpal ligament taut
wrist is in full flexion
ligament of the lateral surface
radial collateral ligament
radial collateral ligament
originates on the radius and passes to the scaphoid, trapezium, and first metacarpal
capsular ligament
primary function of the radial collateral ligament
passive control of the radiocarpal motion during ulnar deviation
medial surface ligament
ulnar collateral ligament
ulnar collateral ligament
originates on the ulna and inserts on the pisiform and triquetrum
capsular ligament
primary function of the ulnar collateral ligament
passive control of radiocarpal motion during radial deviation
volar surface ligaments
volar radiocarpal ligament
ulnocarpal ligament
volar radiocarpal ligament
has 3 distinct bands
they are the most important ligaments for motion and stability
play a significant role by limiting movement of joint surfaces and maintaining joint integrity
3 parts of volar radiocarpal ligament
radiocapitate
radiotriquetral
radioscaphoid
which band of the volar radiocarpal ligament is the strongest, largest and most distinct
radiotriquetral
also supports the lunate
