The heart valves ensure that once blood has passed through them, into or out of the heart, it can not flow backwards.
The valve located at the entrance of the R.V. is the Tricuspid Valve. The valve located at the entrance of the L.V. is the Bicuspid or Mitral Valve.
equepment of the entrance guard to count number of entering customer inside the mall
The heart pumps blood from the left ventricle through the aortic semilunar valve into the Aorta.
equepment of the entrance guard to count number of entering customer inside the mall
To guard the entrance of Hades.
They guard the entrance to the Underworld.
Cerberus
Cerberus
cerberus
cerber
The entrance valve that sees only unoxygenated blood is the tricuspid valve. This valve is located between the right atrium and right ventricle in the heart. It prevents the backflow of blood from the ventricle to the atrium when the heart contracts.
the aorta and the aortic valve. :D