med term - ch 11: cardio

arteries

large type of blood vessel: carries blood away from the heart to all parts of the body

arterioles

small artery

capillaries

smallest type of blood vessels

venules

small vein

vein

thin walled vessel that carries blood from body tissues and lungs back to the heart; veins contain valves to prevent backflow of blood

vena cava

largest vein in the body; returns blood to the right atrium of the heart

pulmonary artery

artery carrying oxygen poor blood from the heart to the lungs

pulmonary veins

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

aorta

largest artery in the body

tricuspid valve

located between right atrium and right ventricle w/ three cusps

pulmonary valve

valve positioned between right ventricle and pulmonary artery

mitral valve

valve between left atrium and left ventricle; bicuspid valve

p wave represents

spread of excitation wave over the atria before contraction

qrs wave represents

spread of excitation wave over the ventricles as the ventricles contract

t wave represents

electrical recovery and relaxation of ventricles

angi/o

vessel

aort/o

aorta

arter/o, arteri/o

artery

ather/o

yellowish plaque, fatty substance

atri/o

atrium, upper heart chamber

brachi/o

arm

cardi/o

heart

cholesterol/o

cholesterol; lipid substance

coron/o

heart

cyan/o

blue

myx/o

mucus

ox/o

oxygen

pericardi/o

pericardium

phleb/o

vein

rrhythm/o

rhythm

sphygm/o

pulse

steth/o

chest

thromb/o

clot

valvul/o, valv/o

valve

vas/o

vessel

vascul/o

vessel

ven/o, ven/i

vein

ventricul/o

ventricle, lower heart chamber

arteri/o

artery

arthr/o

joint

coronary arteries

blood vessels that branch from the aorta and carry oxygen-rich blood to the heart muscle

sphygmomanometer

instrument to measure blood pressure

sinoatrial node

sensitive tissue in the right atrium wall that begins the heartbeat

cardiomyopathy

disease of the heart muscle

coronary arteries

located b

sinoatrial (SA) node

pacemaker of the heart

pericardium

sac-like membrane surrounding the heart

interatrial septum

the wall of the heart between the right and the left atria

diastole

relaxation phase of the heartbeat

atrioventricular bundle (bundle of His)

specialized conductive tissue in the wall between ventricles

endocardium

inner lining of the heart

systole

contractive phase of the heart beat

carbon dioxide (Co2)

gas released as a metabolic product of catabolism

atrioventricular (AV) node

specialized conductive tissue at the base of the wall between the two upper heart chambers

the inner lining of the pericardium, closely enveloping the heart is the

visceral pericardium (outer lining is the parietal pericardium)

murmur

an abnormal heart sound due to improper closure of heart valves

pulse

Beat of the heart as felt through the walls of the arteries.

pericardiocentesis

surgical puncture to remove fluid from the pericardial space

endarterectomy

removal of the inner lining of an artery to make it wide

aneurysmorrhaphy

suture (repair) of a ballooned-out portion of an artery

atherectomy

removal of plaque from an artery

CABG

coronary artery bypass grafting (to relieve ischemia)

valvotomy

incision of a heart valve

embolectomy

removal of a clot that has traveled into a blood vessel and suddenly caused occlusion