Some facts about colonoscopy Biology Diagrams 10.1055/b-0038-166135 1 Surgical Anatomy of the Colon, Rectum, and AnusSanthat Nivatvongs, Philip H. Gordon, and David E. Beck Abstract This chapter will review the surgical anatomy of the colon and rectum, including general configuration, course relations, peritoneal coverings, and ileocecal valve in the colon, and peritoneal relations, fascial attachments, fascia propria, Waldeyer's fascia While explaining the colon, rectum, and anal canal anatomy, the pectinate line should be mentioned separately. The pectinate line is formed by the margins of the anal valves which are the small mucosal pockets between the five or ten folds of the mucosa that are known as the anal columns of Morgagni. It is the most critical mark in the anal canal.
The job of the sigmoid colon is to solidify stool before it enters the rectum and anal canal for excretion. It does this by contracting, and the increased pressure moves the stool. Anatomy of Colon and Rectum. The entire colon is about 5 feet (150 cm) long, and is divided into five major segments. The rectum is the last anatomic segment before the anus.. The ascending and descending colon are supported by peritoneal folds called mesentery.. The right colon consists of the cecum, ascending colon, hepatic flexure and the right half of the transverse colon. The rectum is the final segment of the large intestine that connects the colon to the anus. It stores fecal matter produced in the colon until the body is ready to eliminate the waste through the process of defecation. Anatomy. The rectum is a hollow muscular tube about 8 inches (20 cm) in length and 2.5 inches in diameter at its widest point.
Anatomy of Colon and Rectum Biology Diagrams
The rectum is the most distal portion of the large intestine, bound by the sigmoid colon proximally and converging into the anal canal distally. This segment of the intestine derives its name from Latin intestinum rectum meaning "straight intestine," describing its course compared to the tortuous appearance of the rest of the gastrointestinal (GI) tract. Coursing within the pelvis, the
Anatomy of the Colon and Rectum Richard L. Drake Jennifer M. McBride Introduction Fig. 1. The components of the large intestine, which consists of the cecum, the appendix, and the ascending, transverse, descending, and sigmoid colons, the rectum and the anal canal. (From Drake RL, Vogl W, Mitchell AWM, et al. Gray's Atlas of Anatomy.โฆ Your rectum is at the end of your large intestine, a long, continuous tube that includes your colon, rectum and anus. Your rectum makes up the last 6 inches or so, just before it turns into the anal canal. This is the last stop on your food's journey through your gastrointestinal (GI) tract before it exits. As food waste passes from your
