Protein digestion takes place between your mouth and your small intestine. All the cells of your body contain protein, and this protein is continually broken down and remodeled to meet your growth and maintenance needs.
If you need help, here is a hintâ¦ Each year, there are over 100,000 heart valve surgeries performed in the United States. For the answer, scroll down below the picture of a diseased mitral valve with calcified valve flaps.
The heart has four valves and the other two are the mitral and the tricuspid valves. The aortic valve normally has three cusps or leaflets, although in 1-2% of the population it is found to congenitally have two leaflets. It lies between the left ventricle and the aorta.