Ch11 Cardiovascular System - Vocabulary

largest artery in body

small artery

specialized muscle fibers connecting the atria w/ ventricles & transmitting electical impulses b/t them

specialized tissue in the wall b/t atria. electrical impulses pass frm pacemaker (SA node) thru AV node & atrioventricular bundle (HISS) twrd ventricles

one of two upper chambers of heart

smallest blood vessel. mat'ls pass to & frm the bloodstream thru thin capillary walls

gas (waste) release by body cells, transported via veins to heart & to then lungs for exhalation

blood that is oxygen-poor

relasation phase of heartbeat

electricity record of the heart

inner lining of heart

innoermost lining of blood vessels

valve b/t the left atrium & left ventricle; bicuspid valve

abnrml heart sound caused by impoper closure of heart valves

muscular, mid layer of heart

heart rhythm originating in sinoartial node w/ resting rate of 60 - 100 beats/min

gas that enters blood thru the lungs & travels to the heart to be pumped via arteries to all body cells

specialized nervous tissue in the right atrium that begins the heartbeat.

[an artificial cardiace pacemaker is an electronic apparatus implanted in the chest to stimulate heart muscle that's weak & not functioning]

membrane surrounding the heart

artery carrying oxygen-poor blood from heart to lungs

flow of blood frm the heart to lungs & back to the heart

valve positioned b/t the right ventricle & pulmonary artery

one of two pairs of vessels carrying oxygenated blood frm lungs to left atrium of heart

beat of heart as felt thru walls of arteries

wall dividing a cavity; such as b/t the right and left atria & right and left ventricles

pacemaker of heart

instrument for measure blood pressure

flow of blood frm body tissue to heart & then frm heart back to body tissues

contraction phase of heartbeat.

located b/t the right artrium & right ventricle, has three leaflets (or cusps)

structure in veins or heart temporarily closes an opening so blood flows in only one direction

thin-walled vessel that carries blood frm body tissues & lungs back to heart. contains valves to prevent backflow of blood

lrgst vein in body. superior & inferior venae cavae return blood to right atrium of heart

one of two lower chambers of heart

small vein

plague rupture in coronary arteries; angina & myocardial infarction

chest pain from myocardial ischemia

antihypertensive drug blocks conversion of angiotenis I to II and dilates blood vessels; prevents heart attacks, coronary heart failure, stroke & death

listening to sounds w/ stetheoscope

drugs use to treat angina, hypertenstion & arrhythmias

device enabling ventricles to beat together to allow blood to pump out of heart

abnrml blowing or swishing sound of artery/organ

to treat angina & hypertension

sudden unexpected stop of heart

pressure on heart caused by fluid in preicardial space

pain, tension & weekness in leg after walking has begun, but absense of pain at rest

drug treats arrhythmias & strengthens heartbeat

clot that travels to distant location & suddenly blocks blood vessels

area of dead tissue

drugs used in treatment of angina

closure of blood vessel

uncomfortable sensations in the chest related to cardiac arrhythmias; premature ventricular contractions.

open

scraping or grating noise of heart, pericarditis

sm., pinpoint hemorrhages

drugs used to lower cholesterol in bloodstream

vibration felt on touching the hbody over an area of turmoil in blod flow (as a blocked artery)

clumps of platelets, clotting proteins, microorgs & red blood cells on endocardium in cond; such as bacterial endocarditis & rheumatic heart disease