3.3 Shoulder and ArmStyloid process of the radius
(Figs 3.57, 3.58)
The styloid process forms a flat mound on the anterior and lat-
eral aspect of the distal end of the radius. An oblique groove can
be palpated at the transition from the process to the shaft of the
radius. This is the location of LU-7. LU-8is located
slightly more distally and anteriorly, at the border of the process.Styloid process of the ulna
(Figs 3.57, 3.58)
The styloid process of the ulna is located at the distal end of the
ulna, forming a distinct prominence. With the elbow flexed and
the forearm in a supinated position, a small groove becomes pal-
pable (sliding groove of the tendon of the extensor carpi ulnaris
muscle). This is the location of S.I.-6.RadiusStyloid process
of the radiusScaphoidUlnaStyloid process
of the ulnaTriquetrumHamatumDistal
radioulnar
joint
Styloid
process
of the ulna
PisiformRadiusStyloid process
of the radiusLunateUlnaFig. 3.57 Wrist joint, posterior view
Fig. 3.58 Wrist joint, anterior view
Abductor pollicis
longusBrachioradialis
1,5 cunWrist joint
spaceS.I.-6 Styloid process
of the ulnaWrist joint spaceRadial
arteryLU-9Carpal bonesAbductor
pollicis longus
LU-8
1 cunFig. 3.59