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50 Cards in this Set

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Abdominal Aortic Aneurysm
Permanent localized dilation of an artery, w/ an increase in diameter of 1.5 times its normal diameter
Anastomosis
A communication b/t 2 blood vessels w/out any intervening capillary network
Aorta (AO)
Largest arterial structure in the body;arises from the left ventricle to supply blood to the head, upper & lower extremities, & abdominopelvic cavity
Arteries
Vascular structures that carry blood away from the heart
Arteriosclerosis
A disease of the arterial vessels marked by thickening, hardening, & loss of elasticity in the arterial walls
Arteriovenous Fistula
Communication b/t an artery & vein
Atherosclerosis
Condition in which the aortic wall becomes irregular from plaque formation
Budd-Chiari Syndrome
Thrombosis of the hepatic veins
Capillaries
Minute vessels that connect the arterial & venous systems
Cavernous Transformation of the Portal Vein
Periportal collateral channels in patients w/ chronic portal vein obstruction
Common Hepatic Artery
Arises from the celiac trunk to supply the liver
Common Iliac Arteries
The abdominal aorta bifurcates at the level of the umbilicus into common iliac arteries to supply blood to the lower extremities
Cystic Medial Necrosis
Weakening of the arterial wall
Dissecting Aneurysm
Tear in the intima and/or media of the abdominal aorta
Doppler Sample Volume
The sonographer selects the exact site to record Doppler signals & sets the sample volume (gate) at this site
Fusiform Aneurysm
Circumferential enlargement of a vessel w/ tapering at both ends
Gastroduodenal Artery (GDA)
Branch of the common hepatic artery to supply the stomach & duodenum
Hepatic Veins (HV)
3 large beins that drain the liver & empty into the inferior vena cava at the level of the diaphragm
Hepatofugal
Flow away from the liver
Hepatopetal
Flow toward the liver
Inferior Mesenteric Artery (IMA)
Arises from the anterior aortic wall at the level of the 3rd or 4th lumbar vertebra to supply the left transverse colon, decending colon, sigmoid colon, & rectum
Inferior Mesenteric Vein (IMV)
Drains the left 3rd of the colon & upper colon & joins the splenic vein
Inferior Vena Cava (IVC)
Largest venous abdominal vessel that conveys blood from the body below the diaphragm to the right atrium of the heart
Left Gastric Artery (LGA)
Arises from the celiac azis to supply the stomach & lower 3rd of the esophagus
Left Hepatic Artery
Small branch supplying the caudate & left lobes of the liver
Left Renal Artery (LRA)
Arises from the posterolateral wall of the aorta directly into the hilus of the kidney
Left Renal Vein (LRV)
Leaves the renal hilum, travels anterior to the aorta & posterior to the superior mesenteric artery to enter the lateral wall of the inferior vena cava
Marfan's Syndrome
Hereditary disorder of connective tissue, bones, muscles, ligaments, & skeletal structures
Nonresistive
Vessels that have high diastolic component & supply organs that ened constant perfusion (ex. internal carotid artery, hepatic artery, & renal artery)
Portal Vein (PV)
Formed by the union of the uperior mesenteric vein & splenic vein near the porta hepatis of the liver
Poertal Venous Hypertension
Most commonly results from intrinsic liver disease; however, it also arises from obstruction of the portal vein, hepatic veins, inferior vena cava, or prolonged congestive heart failure. May cause flow reversal to the liver, thrombosis of the portal system, or cavernous transformation fo the portal vein.
Psudoanerusym
Pulsatile hematoma that results from leakage of blood into soft tissues abutting the punctured artery w/ fibrous encapsulation & failure of the veseel wall to heal
Resistive
Vessels that have little or reversed flow in diastole & supply organs that do not need a constant blood supply (ex; external carotid artery & brachial arteries)
Resistive Index
Peak systole minus peak diastole divided by peak systole (S-D/S=RI); an RI of 0.7 or less indicates good perfusion; an RI of 0.7 or higher indicates decreased perfusion
Right Gastric Artery (RGA)
Supplies the stomach
Right Hepatic Artery (RHA)
Supplies the gallbladder via the cystic artery
Right Renal Artery (RRA)
Arises from the lateral wall of the aorta, travels posterior to the inferior vena cava to supply the kidney
Right Renal Vein (RRV)
Leaves the renal hilum to enter the lateral wall fo the IVC
Saccular Aneurysm
Localized dilatation of the vessel
Spectral Broadening
Increased turbulence is seen w/in the spectral tracing that indicates flow disturbance
Splenic Artery (SA)
Arises from the celiac trunk to supply the spleen
Splenic Vein (SV)
Drains the spleen; travels horizontally across the abdomen (posterior to the pancreas) to join superior mesenteric vein to form the portal vein
Superior Mesenteric Artery (SMA)
Arises inferior to the celiac axis to supply the proximal half of the colon & the small intestine
Superior Mesenteric Vein (SMV)
Drains the proximal half of the colon & small intestine; travels vertically (anterior to the inferior vena cava) to join the splenic vein to form the portal veins
TIPS
Transjugular Intrahepatic Portosystemic Shunt
Tunica Intima
Consists of the following 3 layers: layer of endothelial cells, layer of delicate connective tissue, layer of elastic fibers
Tunica Media
Consists of smooth muscle fibers w/ elastic & collagenous tissue
Tunica Adventitia
Consists of loose connective tissue w/ bundles of smooth muscle fibers & elastic tissue
Vasa Vasorum
The tiny arteries & veins that supply the walls of blood vessels
Veins
Collapsible vascular structures that carry blood back to the heart