Flashcards in Digestive System Deck (128)
What type of epithelium is the large intestine? Anal Canal?
Large intestine: simple columnar epithelium
Anal canal: stratified squamous
What type of cells do large intestines contains that secrete mucus?
What are the functions of the Bacterial flora in the large intestine?
colonize colo, ferment cellulose and other plant polysaccarides, synthesize B complex vitamins and vitamin K
What are the digestive process in the large intestine?
absorption- absorbs remaining water
Propulsion- propels feces toward rectum
Defacation- eliminates feces toward body
Long, slow-moving, powerful contractile waves, force contents toward rectum
Parasympathetic reflex that is initiated by stretching rectal wall.
What is the result of the defecation reflex
sigmoid colon and rectum contract and internal anal sphincter relaxes