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.
Most people's last a lifetime. But when valves go bad, they may need to be repaired or replaced. Almost 90,000*1 Americans a year need surgery for valve disease. Many of these people will get new, replacement valves made of mechanical or biologic (animal) materials.