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.
Peristalsis. Food is moved the digestive system by a process known as peristalsis. This is the contractions of two sets of muscles in the walls of the gut. One set runs along the gut, while the other set circles it.Their wave-like contractions create a squeezing action, moving down the gut.eristalsis. Food is moved the digestive system by a process known as peristalsis. This is the contractions of two sets of muscles in the walls of the gut. One set runs along the gut, while the other set circles it.