Psychology 2036A/B Chapter Notes - Chapter 9: Systolic Geometry, Canola, Stethoscope
22 Feb 2014
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The heart circulates blood to all parts of the body. Blood carries oxygen from the lungs to the organs and take carbon dioxide away for the. Superior/inferior vena cava right atrium right ventricle pulmonary artery lungs pulmonary vein left atria left ventricle aorta. A system of inlet valves open and close to help direct blood in and around the heart and to prevent back flow. Lub-dub sound is a result in valves closing. Blood pressure = measure of heart health: systolic/diastolic. Cardiovascular disease a group of disorders of the heart or circulatory system. Atherosclerosis: athero = paste, sclerosis = hardening, deposition of fats, cholesterol, calcium, plaque in the arteries, plaque narrows the passageways of arteries and reduces the volume of blood flowing to or from the heart. Reduction in blood flow can damage the heart: a normal artery is flexible allow blood to flow easily through the vessels.
