(Encyclopedia)
CE5
Cross section of vein showing valves
vein, blood vessel that returns blood to the heart. Except for the pulmonary vein, which carries oxygenated blood from the lungs to the…
(Encyclopedia) beta-blocker or beta-adrenergic blocking agentbeta-adrenergic blocking agentbāˈtə ădˌrənûrˈjĭk [key], drug that reduces the symptoms connected with hypertension, cardiac arrhythmias,…
(Encyclopedia) blood pressure, force exerted by the blood upon the walls of the arteries. The pressure in the arteries originates in the pumping action of the heart, and pressure waves can be felt at…
(Encyclopedia)
CE5
Aorta
aortaaortaāôrˈtə [key], primary artery of the circulatory system in mammals, delivering oxygenated blood to all other arteries except those of the lungs. The human aorta…
The Four ChambersAnatomy and PhysiologyThe HeartAnatomy of the HeartThe Four ChambersThe Heart's Own BloodECG: Measuring a Beat So why do you need four chambers if three worked just fine for…
(Encyclopedia) autoimmune disease, any of a number of abnormal conditions caused when the body produces antibodies to its own substances. In rheumatoid arthritis, a group of antibody molecules called…
PARTS OF THE SYSTEM HEART BLOOD VESSELS BLOOD FIND OUT MORE
The circulatory system is centred on the HEART, a muscular organ that rhythmically pumps BLOOD around a complex network of BLOOD…
(Encyclopedia) Kawasaki disease or Kawasaki syndrome, acute illness characterized by inflammation of the blood vessels that primarily affects young children; it is more common in boys and children of…
ECG: Measuring a BeatAnatomy and PhysiologyThe HeartAnatomy of the HeartThe Four ChambersThe Heart's Own BloodECG: Measuring a Beat The electrical conductivity that is an inherent part of the…
