L47. Large Intestine Flashcards
Name the pouch at the beginning of the large intestine.
Caecum
Which structure is attached to the caecum?
Appendix
Name the 4 regions of the colon
Ascending
Transverse
Descending
Sigmoid
Name the patient’s RHS flexure in the large intestine
Hepatic flexure
Name the patient’s LHS flexure in the large intestine
Splenic flexure
What are the bulges along the large intestine called?
Haustrations
Name the valve between the caecum and the ascending colon.
Ileo-caecal valve.
What is the purpose of the ileo-caecal valve?
To allow chime to move from the small intestine to the large intestine
Name 3 similarities between the small and large intestine.
- Simple columnar epithelium with goblet cells
- Intestinal crypts
- Mucous glands
Name 3 features unique to the large intestine.
No villi
Incomplete layer of longitudinal muscle (taenia coli)
Ring-like arrangement of circular muscle (haustrae)
What causes diarrhoea?
Failure to reabsorb fluids in the large intestine
What is present in the large intestine to ferment dietary fibre?
Bacterial flora
Name 2 types of propulsive movement in the large intestine.
Peristalsis
Mass movement
Describe peristalsis.
Occurs in transverse and descending colon
short range
Describe mass movement.
Infrequent
occurs after meals
