AP BIOLOGY

Detailed explanation-1: -The main organs that make up the digestive system (in order of their function) are the mouth, esophagus, stomach, small intestine, large intestine, rectum and anus. Helping them along the way are the pancreas, gall bladder and liver.

Detailed explanation-2: -The small intestine has three parts. The first part is called the duodenum. The jejunum is in the middle and the ileum is at the end. The large intestine includes the appendix, cecum, colon, and rectum.

Detailed explanation-3: -The small intestine is involved in the digestion of food and absorption of nutrients. The large intestine is involved in the absorption of water and in the production of vitamins.

Detailed explanation-4: -The long, tube-like organ that is connected to the small intestine at one end and the anus at the other. The large intestine has four parts: cecum, colon, rectum, and anal canal.

Detailed explanation-5: -The entry point, about six inches long, is called the cecum. The rest of the colon is divided into segments: the ascending colon (traveling up), the transverse colon (traveling across to the left), the descending colon (traveling down) and the sigmoid colon (headed back across to the right).