The Marble Arch Caves Visitor Centre, car park, audio visual presentation, souvenir shop, toilets, and restaurant are fully accessible. To exit the Showcave, visitors are required to climb over 150 steps; therefore the showcave is not accessible for wheelchairs or prams/pushchair.
1 Digestive System The process of chemically and physically breaking down foods into simpler forms that can be absorbed is called digestion. Digestive System â¢ The digestive system can be divided into two major parts: â (1) the alimentary canal (gastrointestinal, or digestive tract) and â (2) the accessory organs.igestive System Overview â¢ The large intestine is divided into the (1) cecum, (2) appendix, (3) colon, (4) rectum, and (5) anal canal. â The sigmoid colon joins the rectum, which terminates at the anal canal. The short anal canal terminates at the opening to the outside called the anus.
The stomach receives food from the esophagus. As food reaches the end of the esophagus, it enters the stomach through a muscular valve called the lower esophageal sphincter. The stomach secretes acid and enzymes that digest food. Ridges of muscle tissue called rugae line the stomach.The stomach muscles contract periodically, churning food to enhance digestion.The pyloric sphincter is a muscular valve that opens to allow food to pass from the stomach to the small intestine.idges of muscle tissue called rugae line the stomach. The stomach muscles contract periodically, churning food to enhance digestion. The pyloric sphincter is a muscular valve that opens to allow food to pass from the stomach to the small intestine.