What is the first part of the large intestine?

The correct answer is Blindness (Cecum).

Key Points

• The cecum is the first part of the large intestine.
• It is a pouch that is attached to the end of the small intestine.
• The cecum is about 5 inches long and 3 inches wide.
• It is located in the lower right abdomen.
• The cecum's main function is to store undigested food and water.
• It also helps to absorb nutrients and electrolytes.
• The cecum is connected to the ascending colon, which is the next part of the large intestine.

Important Points

• Large intestine:
  • The large intestine, the posterior section of the intestine, consists typically of four regions: the cecum, colon, rectum, and anus. Hence statement A is correct.
  • The term colon is sometimes used to refer to the entire large intestine.
  • The large intestine is wider and shorter than the small intestine (approximately 1.5 meters, or 5 feet, in length as compared with 6.7 to 7.6 meters, or 22 to 25 feet, in length for the small intestine) and has a smooth inner wall.
  • The primary function of the large intestine, however, is the absorption of water, electrolytes and vitamins from digestive residues (a process that usually takes 24 to 30 hours) and the storage of faecal matter until it can be expelled.
  • The last stages of chemical digestion occur in the large intestine through bacterial action. Substances are further broken down and some vitamins are synthesized.