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What is the pulmonary semi lunar valve?

The pulmonary semilunar valve is a heart valve that separates the right ventricle from the pulmonary artery. It functions to prevent the backflow of blood from the pulmonary artery back into the right ventricle during the heart's pumping cycle.


What are red blood cells brown or red?

Red blood cells are red because they contain a protein called hemoglobin, which binds to oxygen and gives the cells their red color. Brown blood may indicate that the blood has been exposed to oxygen for a prolonged period of time, causing the hemoglobin to oxidize and change color.


What is the process in which deoxygenated blood comes to the lungs to get oxygen?

Deoxygenated blood comes to the lungs to be reoxygenated in the respiratory process. This involves both blood flow and the circulation of oxygen from it's separation from room air into base gas components in the lungs. The perfusion process is also another name for it, but this is a little general. The blood itself circulates to the lungs via the pulmonary artery (the only artery to carry deoxygenated blood) to the lungs where the spent oxygen is exchanged as carbon dioxide for new oxygen molecules via the perfusion process and is then returned to the heart via the pulmonary vein(the only vein to carry oxygenated blood).


What does the term pulmonary mean?

The pulmonary system refers to the flow of blood from the heart to the lungs and back to the heart where oxygenated blood is picked up from the lungs and returned to the heart to be dispersed throughout the body. See the related link for more information.


What is the scientific name for the color pink?

The scientific name for the color pink is Dianthus plumarius. It is actually the name of a flower. That's how the color pink was named, after a flower.