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Closure of  the  pulmonary semilunar valve helps produce which heart sound in a normal heart beat:

When red blood cells are removed from blood circulation, most parts of the hemoglobin are recycled.  Bilirubin, which is the only part of the hemoglobin that is not recycled, will be absorbed by an organ and then delivered to two areas of the body for removal.  Along with the kidneys, which other organ will excrete or eliminate the bilirubin out of the body.

Elastic arteries are larger in diameter than muscular arteries.

In a drop of blood, how many platelets should a normal healthy adult have?

All of the following are distributed by the blood EXCEPT:

Which layer of the heart wall is the deepest?

In regards to capillary exchange, Net Filtration Pressure (NFP) is best described as:  

Which of the following blood vessels carries oxygen rich blood directly into the capillary?  

A patient with a fever (high body temperature) will likely have:

As blood flows through the heart, which chambers will contain oxygenated blood?