MIME-Version: 1.0 Content-Location: file:///C:/0B8792B9/CardfiologyVocabulary.htm Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="us-ascii" Vocabulary

Vocabulary

 

·      =     Aorta: Largest artery in the body.<= o:p>

 

·      =     Arteriole: Small artery.

 

·      =     Artery: Largest type of blood vessel; carries blood away from the heart to all parts of the body.

 

·      =     Atrioventricular node (AV nod= e): Specialized tissue at the ba= se of the wall between the two upper heart chambers. Electrical impulses pass from the pacemaker (Sa node) through the thin capilla= ry walls.

 

·      =     Atrium (plural: atria): Upper chamber of the heart.<= o:p>

 

·      =     Bundle of His: Specialized muscle fibers in= the wall between the ventricles that carry the electric impulses to the ventric= les.

 

·      =     Capillary: Smallest blood vessel. Mater= ials pass to and from the bloodstream through the thin capillary walls.

 

·      =     Carbon dioxide (CO2):<= /b> A gas (waste) released by bo= dy cells and transported via veins to the heart and then to the lungs to be expelled.

 

·      =     Coronary arteries:= The blood vessels that branc= h from the aorta and carry oxygen-rich blood to the heart muscle.

 

·      =     Deoxygenated blood: Blood that oxygen-poor.=

 

·      =     Diastole: Relaxation phase of the hear= t.

 

·      =     Endocardium: Inner lining of the heart.

 

·      =     Endothelium: Innermost lining of blood ve= ssels.

 

·      =     Mitral valve: Valve found between the left atrium and the left ventricle of the heart.

 

·      =     Murmur: An abnormal heart sound caus= ed by improper closure of heart valves.

 

·      =     Myocardium: Muscle layer of the heart.

 

·      =     Oxygen: Gas that enters the blood th= rough the lungs and travels to the heart to be pumped via arteries to all body ce= lls.

 

·      =     Pacemaker: Sensitive tissue in the right atrium that begins the heartbeat; also called the sinoatrial node.

 

·      =     Pericardium: Sac-like membrane surroundin= g the heart.

 

·      =     Pulmonary artery:<= span style=3D'font-size:8.0pt;font-family:Verdana'> An artery carrying oxygen-po= or blood from the heart to the lungs.

 

·      =     Pulmonary circulation:= The flow of blood from the h= eart to the lungs and back to the heart.

 

·      =     Pulmonary valve: Valve between the right vent= ricle and the pulmonary artery.

 

·      =     Pulmonary vein: A vein carrying oxygenated b= lood from the lungs to the heart.

 

·      =     Pulse: The beat of the heart as felt through the walls of the arteries.

 

·      =     Septum (plural: septa): A partition: in the cardiova= scular system a partition between the right and the lefts sides of the heart.=

 

·      =     Sinoatrial node (SA node): The pacemaker of the heart.<= o:p>

 

·      =     Sphygmanometer<= /span>: Instrument to measure blood pressure.

 

·      =     Systemic circulation:<= /b> The flow blood from the body= cells to the heart and then back out from the heart to the cells.

 

·      =     Systole: The contraction phase of the heartbeat.

 

·      =     Tricuspid valve: Valve located between the ri= ght atrium and the right ventricle: it has three (tri) leaflets. Or cusps.

 

·      =     Valve: A structure in veins or in the heart that temporarily closes an opening so that blood flows in only one direction.

 

·      =     Vein: Thin-walled blood vessel that carries blood from the body tissues and lungs to the heart.

 

·      =     Vena cava (plural: venae cavae):<= span style=3D'font-size:8.0pt;font-family:Verdana'> Largest vein in the body. The superior and inferior venae cavae bring blood into the right atrium of the heart.

 

·      =     Ventricle: Lower and larger chamber of = the heart.