Missouri University of Science and Technology tuition is $7,734 per year for in-state residents. This is 13% more expensive than the national average public four year tuition of $6,841. The cost is 53% cheaper than the average Missouri tuition of $16,299 for 4 year colleges.
Systole: Period of ejection. AV valves closed Semilunar valves opened AV valves closed Semilunar valves closed Diastole: Period of isovolumic relaxation. Blood flowing back toward the relaxed ventricles causes the semilunar valves to close, which is the beginning of ventricular diastole.
The mitral valve separates the heart's left atrium (upper chamber) from the left ventricle (lower chamber), and has two leaflets that open and close like saloon doors. When the leaflets are open, blood flows from the upper into the lower chamber. When the heart contracts, the mitral valve closes.