Parts of Large Intestine Flashcards
cecum
expanded puch
fx 1
to receive material arriving from the ileum
fx 2
to store materials and begin compaction
appendix
slender, hollow appendage about 9cm
the appendix is dominated by
lymphoid nodules
the colon
has a larger diameter and thinner wall small intestine
the wall of colon
forms a series of pouches called haustra
haustra
allows the colon to expand and elongate
rectum forms
the last 15 cm of digestive tract
rectum is an
expandable organ
fx of rectum
to temporarily store feces
movement of fecal material into rectum triggers
urge to defecate
anal canal
last portion of rectum
anal columns
contains small longitudinal folds
anus
exist of anal canal that has keratinized epidermis like skin