Ch.12 Test Heart

varicose veins

blood that pools in the veins that causes discomfort in thighs and legs

balloon angioplasty and stent placement

common technique to improve blood flow and remove plaque in coronary vessels

coronary artery disease

condition in which the coronary circulation is partially or completely blocked

atrial systole

contraction of the upper chambers of the heart

plaque

fatty mass of tissue that projects into the lumen of the vessel and restricts blood flow

valves

folds of the tunica intima that projects from the vessel wall and point in the direction of blood flow

SA node

if normal pacemaker of heart fails, job will be taken over by the

right atrium receives

oxygenated blood from the vena cava

venoconstriction

reduces the diameter of the veins and the amount of blood contained in the venous system

ventricular diastole

relaxation of lower chambers of the heart

interventricular septum

separates 2 ventricles

interatrial septum

separates the 2 atria

diaphragm

the apex of the heart lies superior to the

superior

the base of the heart is the portion that is most

superior and inferior vena cava

the right atrium receives blood from the

coronary arteries

the vessels that supply blood to the heart are called the

arteriosclerosis

thickening and toughening of arterial walls

balloon angioplasty

tip of catheter containing an inflatable balloon is inflated, pressing the plaque against the vessel walls