The newly oxygen-rich blood (shown in red) returns to the heart and enters the left atrium. Blood flows through the left atrium into the left ventricle. The left ventricle pumps the oxygen-rich ...

Hormonal control of reproduction Hormones control puberty, the menstrual cycle, and sperm production ... is a measure of the rate of blood flow through the heart and its associated blood vessels.

Discover how smoking cigarettes increases the risk of heart attacks by damaging your cardiovascular health and triggering ...

Murmurs are described by their timing in the cardiac cycle ... through the narrowed orifice. Conversely, regurgitation of the same valves will result in a diastolic murmur, as blood flows backward ...

open as wide as it should, restricting blood flow through the heart - this means less blood reaches the body, pressure builds up and the lungs can swell with fluid close properly and allow blood ...

Disease of the cardiac valves and other cardiac structures frequently results in abnormal, turbulent blood flow ... to the A2 heart sound, the murmur of pulmonic stenosis extends through the ...