It took place on the same ground as the First Battle of Bull Run. The battles took place around the city of Manassas, which is in Prince William County, Virginia. These battlâ¦es are also known as the First and Second Manassas.
The involuntary motion that moves food through the alimentary canal is called peristalsis and is a wavelike contraction and relaxation of the intestinal wall smooth muscles. It pushes food along the intestine.
Digestion involves: The mixing of food. The movement of food through the digestive tract. A chemical breakdown of large molecules of food into smaller molecules. Digestion begins in the mouth, where food and liquids are taken in, and is completed in the small intestine.n general, there are six steps in the process of moving food and liquid through the digestive system: The first major muscle movement is swallowing food or liquid. The start of swallowing is voluntary, but once it begins, the process becomes involuntary and continues under the control of the nerves.