Poisoning from Food Anatomy
To better understand food poisoning, it helps to understand the anatomy of the gastrointestinal tract.
The intestine is a long, continuous, tube inside the body. It lets the body absorb nutrients from food and liquids. The intestine is about 22 feet long. It includes the large intestine (colon) and the small intestine.
The small intestine has three parts:
- Connects to the stomach
- Middle portion of the small intestine
- Lower portion of the small intestine that connects to the cecum (first part of the large intestine)
The large intestine is also known as the colon. It is the last portion of the intestine.
The colon has several parts, including:
- The portion of the colon that connects to the ileum (small intestine). The appendix is a finger-like pouch that comes off of the cecum.
- Ascending colon:
- The first section after the small intestine, located on the right side
- Transverse colon:
- Sits horizontally across the upper abdomen
- Descending colon:
- Located on the left side of the abdomen
- A short, S-shaped section above the rectum
- The lowest internal part of the colon
- Bricker E, Garg R, Nelson R, Loza A, Novak T, Hansen J. Antibiotic treatment for Clostridium difficile-associated diarrhea in adults. Cochrane Database Syst Rev. 2005 Jan 25;(1):CD004610. 
- Butzler JP. Campylobacter, from obscurity to celebrity. Clin Microbiol Infect. 2004 Oct;10(10):868-76. 
- Duggan C, Nurko S: "Feeding the gut": the scientific basis for continued enteral nutrition during acute diarrhea. J Pediatr 1997 Dec; 131(6): 801-8. 
- Guerrant RL, Van Gilder T, Steiner TS, et al: Practice guidelines for the management of infectious diarrhea. Clin Infect Dis 2001 Feb 1; 32(3): 331-51. 
- Liebelt EL: Clinical and laboratory evaluation and management of children with vomiting, diarrhea, and dehydration. Curr Opin Pediatr 1998 Oct; 10(5): 461-9. 
- Wong CS, Jelacic S, Habeeb RL: The risk of the hemolytic-uremic syndrome after antibiotic treatment of Escherichia coli O157:H7 infections. N Engl J Med 2000 Jun 29; 342(26): 1930-6.