There is a reduction in the strength of the colonic mucosa with age, and that increased contractions in the descending and sigmoid colon secondary to an insufficient fibre content of the diet cause protrusion through this weakened wall.
32.
The human rectum is about long, and begins at the rectosigmoid junction ( the end of the sigmoid colon ), at the level of the third sacral vertebra or the sacral promontory depending upon what definition is used.
33.
His name is also associated with a surgical incision for access to sigmoid colon and pelvis, particularly used if the midline is very scarred from previous surgery ( Rutherford Morison incision ), and a medical instrument ( Rutherford Morison tissue forceps ).
34.
I can be serious though in saying " vegetarian health nuts have no idea what they are talking about . " " Several pounds " sounds like another " figure not looked up, but made up " have you ever seen the inside of a sigmoid colon?
35.
The final branch which is important for the digestive system is the inferior mesenteric artery, which supplies the regions of the digestive tract derived from the hindgut, which includes the distal 1 / 3 of the transverse colon, descending colon, sigmoid colon, rectum, and the anus above the pectinate line.
