Cardiovascular+System+Notes+CC

http://library.med.utah.edu/kw/pharm/hyper_heart1.html


 * 4 chambers
 * 2 atria
 * 2 ventricles
 * when looking at someone elses heart the left ventricles and left atrium are on the right side
 * the right side of the heart is blue because it doesn't have oxygen at this point
 * the left side of the heart is red because it does have oxygen already
 * veins carry blood to the heart, arteries take blood through the body, and capillaries perform the gas exchange
 * Path of blood
 * from a vein to the right atrium
 * from right atrium to right ventricle when heart is relaxed
 * then moves to the lungs to collect oxygen when the heart contracts
 * oxygenated red blood from lungs enters the left atrium while heart is relaxed and enters left ventricle
 * when it contracts again the oxygenated blood enters the body through arteries
 * Pulse: feeling the pulse of an artery every time the heart contracts
 * lub DUB--> a valve between the atrium and the ventricle and there is a valve between the ventricle and the artery (aorta)