344 upper extremities of 172 Chinese adults were dissected.The courses of the brachial arterial trunks were seen in nine patterns. It was found that 39 cases (11.3%) showed variations of the brachial trunks and their terminal branches.Among the 172 cadavers variations appeared bilaterally in 6 bodies (3.5%) and unilaterally in 27 bodies (15.7%).According to the data published by the Chinese authors on the same subject showed that variations always occurred more often on the right (18.7%) than on the left (10.5%).It showed be a real significant difference between the two sides. Among the 39 cases there was a single arterial trunk of the arm in 18 cases (46.15%) and two trunks in 21 cases (53.85%).In one case both trunks coursed be- hind n.medianus.In the other,only one trunk occurred as a.brachialis superficialis.Its continuation in the forearm was grouped as follows: 1.It bifurcated into a.radialis and a.ulnaris in 21 (55.2%) extremities. 2.Continued into a radialis in 16 (42.1%) extremities. 3.Ended as a brachialis accessorius into m.brachioradialis in 1 (2.7%) extremity.

Observations and measurements of the extrahepatic portal vein on 120 specimens arepresented. 1. The pattern of the pedicle of the portal vein may be classified into three types: (1) The portal vein is formed by convergence of the splenic and superior mesen-teric veins and the inferior mesenteric vein terminates in the splenic vein in 62 of thespecimens (51.67?4.6%). The distance from the termination of the inferior mesentericto the angle of portal confluence varies from 0.3 to 3.9 cm. (2) The termination of the inferior mesenteric vein is at the angle formed by theunion of the splenic and superior mesenteric veins in 17 of the specimens (14.17?3.3%). (3) The inferior mesenteric vein terminates in the superior mesenteric vein in 41of the specimens (34.17?4.3%). The distance from the termination of the inferiormesenteric to the angle of the portal confluence varies from 0.3 to 2.8 cm. 2. The length of the portal trunk varies from 4.5 to 9.2 cm. with 6.75 cm. as anaverage. 3. The postmortem diameter of the portal trunk varies from 0.7 to 1.9 cm. with1.25 cm. being the average. 4. The point of division of the portal vein into 1eft and right branches is found65.84?4.3% (79 specimens) intrahepatic and 34.16?4.3% (41 specimens) extra-hepatic. 5. The topographic relations of the portal vein with the biliary tract and thebranches of the bepatic artery together with some variations are studied and discussed.