These cells transmit messages to the brain, where specific smells or tastes are identified. 1  Olfactory (smell nerve) cells are stimulated by the odors around usthe fragrance from a rose, the smell of bread baking.  Gustatory (taste nerve) cells are clustered in the taste buds of the mouth and throat. They react to food or drink mixed with saliva. Many of the small bumps that can be seen on the tongue contain taste buds. These surface cells send taste information to nearby nerve fibers, which send messages to the brain.
Anemia refers to a lowering of red blood cell count. In terms of colon cancer anemia may be caused by a microscopic amount of chronic blood loss in the stool. In this case, iron is lost with the red blood cells and can slowly deplete the total body stores of iron.
As the tumor progresses, symptoms develop that are related to the location of the tumor within the colon. When the tumor is in the right colon, the patient may complain of vague cramping or aching abdominal pain and report symptoms of anorexia, nausea, vomiting, weight loss, and tarry-colored stools.A partial or complete bowel obstruction is often the first manifestation of a tumor in the transverse colon.Tumors in the left colon can cause a feeling of fullness or cramping, constipation or altered bowel habits, acute abdominal pain, bowel obstruction, and bright red bloody stools.s the tumor progresses, symptoms develop that are related to the location of the tumor within the colon. When the tumor is in the right colon, the patient may complain of vague cramping or aching abdominal pain and report symptoms of anorexia, nausea, vomiting, weight loss, and tarry-colored stools.