Aorta

Dissecting aneurysm

Tear in the intima or media of abdominal aorta

Left renal vein

left the renal hilum, travels anterior to the aorta and posterior to the superior mesenteric artery to enters the lateral wall of the inferior vena cava

Saccular aneurysm

localized dilatation of the vessels

Inferior mesentery vein (IMV )

veins that drains the left third of the colon & upper colon & joins the splenic veins

Rigth renal veins

veins that leaves the renal hilum to enter the lateral wall of the inferior vena cava

Gastroduodenal Artery

Branch of the common hepatic artery that supplies the stomach and duodenum

Portal venous hypertension

Caused by incresing resistance to venous flow through the liver, sonographic finding filatation of the portal vein , splenic and mesenteric, reversal of the portal venous blood flow

Spectral broadening

Change in the spectral width that increases with the flow disturbance

Fusiform Aneurysm

Circumferential enlargement of a vessel with tapering at both ends

Arteriosvenous fistula

Communication bwn an artery and vein

Marfan's Syndrome

Hereditary disorder of connective tissue, bones, muscle, ligament, and skeletal structure

Inferior Vena Cava ( IVC)

Largest abdominal vessels formed by the union of the common iliac veins, flows posterior to the liver to enters the rigth atrium of the heart

Aorta

Largest arterial structure in the body, arises from the left ventricle of the heart and supply blood to the head, upper & lower extremity.

Hepatic Veins

Largest tributaries that drain the liver and empty into the inferior vena cava at the level of the diaphragm

Capillaries

Minute vessels that connect the arterial & venous system

Splenic Artery

One of the three vessels that arise from the celiac axis to supply the spleen, pancreas,stomach & grater amount omentum, forms the superior border of the pancreas

Anastomosis

A communication bwn two blood vessels without any intervening capillary network

Common iliac arteries

A division of the abdominal aorta at the level of the umbilicus to supply blood to the lower extrenity

Common hepatic artery

Artery arising from the celiac trunk to supply the liver

Inferior mesentery artery ( IMA)

Artery that arises from the anterior aortic wall at the level of the third or fourth lunbar vertebra to supply the left transverse colon, sigmoid colon & part of the rectum

Rigth renal Artery

Artery that arises from the posterolateral wall of the aorta & travels posterior to the inferior vena cava to enter the hilum of the kidney

Left renal artery

Artery that arises from the posterolateral walls of the aorta directly into the hilum of the kidney

Superior mesenteric artery

Artery that arises inferior to the celiac axis to supply the proximal half of the colon and the small intestine

Atherosclerosis

Condition in which the aortic wall becomes irregular from plaque formation

Abdominal Aortic aneurysm

Permanent localized dilation of an artery, with an increases in diameter of greater than 1.5 times normal diameter

Pseudoaneurysm

Pulsatile hematoma that results from leakage of the blood into softh tissue abutting the punctured artery with fibrous encapsulation and failure of the vessels wall to heal

Arteriosclerosis

Thinckening & hardening of arterial walls

Budd-Chiari syndrome

Thrombosis of the hepatic vein

Arteries

Vascular structure that carry blood away from the heart

Portal Vein

Vein formed by the union of the superior mesenteric vein and splenic vein near the porta hepatis of the liver

Splenic vein

Vein that drains the spleen, travels horizontal acrossthe abdomen ( posterior to the pancreas ) to join the superior mesenteric veins to form the portal vein.

Veins

collapsible vascular structures that carry blood back to th heart

Superior mesenteric vein

drains small bowels and cecum, transverse and sigmoid colon, travels vertically to join the splenic and portal veins.

Hepatofugal

flow away from the liver

Hepatopetal

flow toward the liver

tunica media

middle layer of the vascular system, veins have thinner tunica media than arteries

Tunica adventitia

outer layer of te vascular system that travels with vasa vasorum