2. Figure 17.7a

5. Superior mediastinum

6. Arch of aorta

13. Arteries

25. Abdominal aortic aneurysm involves a widening, stretching, or ballooning of the aorta. There are several causes of abdominal aortic aneurysm, but the most common results from atherosclerotic disease. As the aorta gets progressively larger over time there is increased chance of rupture.

26. (1) inferior phrenic arteries (scarecrow's eyes)
(2) celiac trunk (nose) - gives rise to the hepatic and splenic arteries (right and left sides of moustache) and left gastric artery (nose bent to left)
(3) superior mesenteric artery (mouth)
(4) renal arteries (scarecrow's arms)
(5) ovarian (or testicular) arteries (scarecrow's breasts)
(6) inferior mesenteric artery (scarecrow's umbilicus)
(7) common iliac arteries (scarecrow's legs)
(8) 4 paired lumbar arteries (scarecrow has a hairy trunk).

29. Arteries of the Abdomen
Figure 18.21d

30. Arteries of the Abdomen
Figure 18.21c

32. Venous system

39. Superficial veins of hand

40. basilic: adjective, Greek basilikos = royal (king-sized) cephalic: adjective, Greek kephale = head.
external jugular v. Note the "W"-shaped structure where the external jugular vein crosses the internal jugular vein, arising from the 'junction of facial(6), retromand ibular (7)and posterior auricu lar(8) veins.

41. Median cubital

42. Head and Neck Latin jugulum = neck
external jugular v. Note the "W"-shaped structure where the external jugular vein crosses the internal jugular vein, arising from the 'junction of facial(6), retromand ibular (7)and posterior auricu lar(8) veins.

43. Brachiocephalic veins