Large Intestine Flashcards
The opening from the ileum into the large intestine is guarded by the
Ileocecal sphincter
What are the four major regions for the large intestine
Cecum, colon, rectum, anal canal
Mechanical digestion is mechanical movement of the large intestine including
Haustral churning, peristalsis and mass peristalsis
What is haustral churning
When each haustral pouch is filled with chyme the walls contract and squeeze the contents into the next haustrum
What is peristalsis and mass peristalsis
A strong peristaltic wave beginning at the middle of the transvers colon and driving the contents of the colon into the rectum
The last stages of chemical digestion occur in the large intestine through the
Activity of bacteria
By the time chyme has remained in the large intestine 3-10 hr it has become solid because of
Water absorption and is now called feces
The elimination of feces from the rectum through the anus is called
Defecation
Where does the large intestine extend from
The ileum to the anus