Large Intestine Flashcards
teniae coli
longitudinal muscle that forms bundles (line through all large intestine)
haustra
contraction of teniae coli bunch up large intestine into many sacs
cecum
first part of large intestine (sac located in lower right quadrant of abdomen)
vermiform appendix
inferior to cecum
ileocecal valve
junction between ileum and cecum
ascending colon
right lateral border of abdomen
right colic flexure
90 degree turn to left near inferior border of left
transverse colon
originates at the right colic flexure, approaches the spleen in the upper left abdominal quadrant
left colic flexure
90 degree turn inferiorly at the spleen
descending colon
originates at the left colic flexure, left side of abdomen, terminates at sigmoid colon
sigmoid colon
shape resembles the letter S, terminates at rectum
rectum
muscular tube that readily expands to store accumulated fecal material prior to defecation
anal canal
last few centimeters of the large intestine, passes through an opening in the muscles of the pelvic floor
internal and external anal sphincters..
relax during defecation
appendicitis
inflammation of appendix (problematic if bursts)