Wrist/Hand- Clinical Assessment Flashcards
What is the joint classification of the thumb joint
synovial saddle joint
what are the actions of the thumb
abduction adduction extension flexion opposition reposition
what is the classification of the wrist joint
synovial condyloid
what are the articulating bones of the wrist
distal end of the radiu, and proximal row of carpal bones
what are the two additional feature within the wrist
the flexor and extensor retinaculum
the triangular fibrocartilage disc
what is the origin and insertion and purpose of the triangular fibrocartilage disc
origin: medial border of distal radius
insertion: base of ulnar styloid
function: main stabiliser of distal radio-ulnar joint, contributing to ulna-carpal stability
what is the function of the retinaculum in the wrist
to prevent bow-stringing of fingers
what ligaments are present in the wrist
Palmer and dorsal radiocarpal ligaments
ulnar and radial collateral ligaments
how many degrees of freedom does the wrist have
2 degrees of freedom
what movements can the wrist do
flexion, extension
ulnar and radial deviation
pronation and supination
what is the blood supply at the wrist from
branches of the ulna and radial arteries
What innervates the wrist
median nerve
radial nerve
ulnar nerve
what are the (5/6) wrist flexor muscles
flexor carpi ulnaris flexor carpi radialis palmaris longus (if present) flexor digitorum superficialis flexor digitorum profundus flexor pollucis longus
what are the (8) wrist extensor muscles
extensor carpi radialis longus extensor carpi radialis brevis extensor carpi ulnaris extensor digitorum extensor pollucis longus extensor pollucis brevis extensor indicis abductor pollucis longus
