chapter 12 wrist

radial collateral ligament

attaches radial styloid process and to the scaphoid and trapezium bones.

radiocarpal joint type

condyloid

palmar aponeurosis

covers tendons of the extrinsic muscles and provides some protection to the palm structures

posterior muscles of the wrist

extensor carpi radialis longus and brevis, extensor carpi ulnaris

motions available at the radoiocarpal joint

flexion extension RD, UD

anterior muscles of the wrist

flexor carpi ulnaris, flexor carpi radialis, palmares longus

hook of hamate is what

forward projection of the anterior surface of the hamate to provide attachment for the transverse carpal ligmanet

mid carpal joint type

irregular, nonaxial

common extensor tendon

lateral epicondyle is origin. single tendon gives rise to many prime movers for extension

what is a common origin for the wrist extensors

lateral epicondyle of the humerus

where does the extensor carpi radialis longus attach

lateral supracondylar ridge

articular disc of the wrist

located on the distal end of the ulna and articulates with the triquetrium and lunate bones. shock absorber

what is a common origin for the wrist flexors

medial epicondyle of the humerus

starting at the radius and going medallion the first row and second row. name the carpal bones

scaphoid, lunate, triquetrum, pisiform, trapezium, trapezoid, capitate, hamate

the collateral ligaments of the wrist attach to which landmarks of the ulna and the radius

styloid process of each bone

ulnar collateral ligament

styloid process of ulna to the pisiform and triquetrum

what is the mid carpal joint

the line between the 2 rows of carpal bones

what does the ulnar collateral ligament prevent

to much RD. attaches to the articular disc TFCC

what does the radial collateral ligament prevent

too much UD

extensor retiniculum

where all of the wrist hand and thumb tendons are contained here

what does the palmar radiocarpal ligament prevent

wrist extension

what does the dorsal radiocarpal ligament prevent

wrist flexion

common flexor tendon

a single tendon that originates on the medial epicondyle of the humerus. gives rise to many muscles that are flexion prime movers