Henry Gray (18251861). Anatomy of the Human Body. 1918.
curved line, with its convexity upward, between the styloid processes of the radius and ulna; the summit of the convexity is about 1 cm. above the center of a straight line joining the two processes.
FIG. 1233 The mucous sheaths of the tendons on the front of the wrist and digits. (See enlarged image)
Muscles.The only muscles of the upper extremity which occasionally require definition by surface lines are the Trapezius, the Latissimus dorsi, and the Pectorales major and minor. The antero-superior border of Trapezius is indicated by a line from the superior nuchal line about 3 cm. lateral to the external occipital protuberance to the junction of the intermediate and lateral thirds of the clavicle; the line of the lower border extends from the spinous process of the twelfth thoracic vertebra to the vertebral border of the scapula at the root of the spine. The upper border