92 



LABORATORY MANUAL OF HUMAN ANATOMY 



(a) Radial recurrent artery (A. recurrens radialis). 



(b) Superficial volar ramus (ramus volaris superficialis) . 



(c) Muscular rami (rami musculares). 



(d) Volar carpal ramus (ramus carpeus volaris) (0. T. anterior radial 



carpal). 

 The other branches of the A. radialis are studied subsequently. 



Radial Nerve (N. radialis) (O. T. Musculospiral) in the Forearm. 



(a) Deep ramus (ramus profundus). 



(aa) Muscular rami (rami musculares). 



FIG. 31. 



FCR 



*** 



' A , 



j . iA ffl 



Ra CR 



at 



f/PC 



FCU 



Transverse section through the forearm of the opossum. 



ai, anterior interosseous nerve ; C, M. centralis; CR, M. condyloradialis ; CU, M. condylo-ulnaris; 

 FCR, M. flexor carpi radialis ; FCU 1 , FCU, 2 lateral and medial portions of the M. flexor carpi ulnaris ; 

 m, median nerve ; PL, M. palmaris longus ; R, radius ; Ra, M. radialis ; U, ulna ; u, ulnar nerve ; UL, 

 M. ulnaris. The shaded areas represent the M. flexor sublimis digitorum. (After McMurrich, Amer. 

 Jour, of Anat., Baltimore, 1903, vol. ii., No. 2, p. 196, Fig. 5.) 



(b) Superficial ramus (ramus superficialis) (0. T. radial branch of mus- 



culospiral ) . 

 The branches of (a) and (b) are studied later. 



Superficial Muscles of Volar Surface and Ulnar Margin of Forearm. 



All the superficial muscles of the forearm should now be 

 dissected out and cleaned. Avoid injury to the sheath of the 

 flexor tendons in the lower part of the forearm (vagina tendinum 

 Mm. flexorum communium). Note that the tendon of the M. 



