There are four heart valves involved in the filling and pumping action
the heart. The mitral valve situates between the left atrium and the left
ventricle. It controls the flow between these
chambers, but is a one-
way valve. The tricuspid valve as the name implies has three cusps.
These are the posterior, the septal, and the anterior. The cusps have
similar geometric shapes. The right ventricle and the low-pressure
pulmonary arterial system
the other hand,
is separated by the
pulmonary valve. The aortic valve separates the left ventricle from the
ascending aorta leading to the high pressure systemic arterial system.
These valves are tricuspid valves whose leaflets are
Blood pressure and blood volume distribution
the systemic circulation.
Notice the largest pressure
occurs in the arterioles and the largest amount
volume reside in the veins which serve as reservoirs. From Rushmer