Mariana Ruiz Villarreal: Wikimedia Commons. The digestive system consists of the mouth, esophagus, stomach, pancreas, gallbladder, liver, small intestine, large intestine, colon and rectum. The main function of the digestive system is to break down food into smaller molecules that the body can absorb.
Best Answer: Monoclonal protein (M-protein) is an antibody found in people with multiple myeloma and other plasma cell tumors. Multiple myeloma: This is a type of cancer that begins in plasma cells (antibody producing white blood cells) Source(s): Optimist Â· 9 years ago.
1 Level of monoclonal protein in the blood or urine â This abnormal protein is produced by malignant plasma cells.  Amount of calcium in the blood â Because bone destruction releases calcium into the blood, a high blood calcium level can indicate advanced bone damage related to multiple myeloma.