NEET PG DENTAL EXAM

Detailed explanation-1: -The GI tract is a series of hollow organs joined in a long, twisting tube from the mouth to the anus. The hollow organs that make up the GI tract are the mouth, esophagus, stomach, small intestine, large intestine, and anus.

Detailed explanation-2: -Material passes through the ascending, transverse, descending and sigmoid portions of the colon, and finally into the rectum.

Detailed explanation-3: -Together, the colon and rectum are about 2 metres (6.5 feet) long. They are surrounded by other organs including the spleen, liver, pancreas, bladder and reproductive organs.

Detailed explanation-4: -The descending colon stores feces that will eventually be emptied into the rectum. The sigmoid colon contracts to increase the pressure inside the colon, causing the stool to move into the rectum. The rectum holds the feces awaiting elimination by defecation.