Large intestine Flashcards
What is the opening between the ileum and large intestine??
the ileocecal sphincter/valve
Where does the large intestine extend from and what are its functions?
From the illeocecal junction to the anus and to reabsorb water, compacts the intestinal contents and stores faecal matter and absorbs vitamins
What is the first part of the large intestine and what does it contain?
The cecum which is a pouch-like structure that the appendix hangs from it. It contains the illeocecal junction, a sphincter of smooth muscle
What is the colon divided up into?
The ascending, transverse, descending and sigmoid colons
Describe the muscularis layer of the large intestine?
Inner circular layer and outer longitudinal layer
What does the longitudinal muscle of the large intestine produce?
3 bands called taenie colon which contract and gather up into pouches called haustra to permit expansion of the intestine
What are the fat filled connective tissue pouches on the serosa called?
Epiploic appendages or omental appendages
What is the mucosa made of and what types of cells does it contain?
Simple columnar epithelium with no plicae so forms into tubular glands called crypts which contain 1. absorptive 2. goblet 3. granular which congeal the faeces together