Anatomy: Hindgut Flashcards
where does the hindgut begin
distal 1/3 of the transverse colon
what attaches the transverse colon to the diaphragm
phrenicolic ligament
is transverse colon intra or retro peritoneal
intra
by the transverse mesocolon
describe the descending colon
left colic flexure to when it turns medially at the sigmoid
retroperitoneal
sigmoid colon
attached to posterior pelvic wall by mesentery called sigmoid mesocolon
length of mesocolon allows mobility
paracolic gutters
spaces between ascending and descending colon and the posterolateral abdominal wall
what are the distinguishing features of the large intestine compared to the small intestine
ommental appendices
tenaie coli
haustra
ommental appendices
small pouches of peritoneum
filled with fat
tenaie coli
3 strips of muscle
-mesocolic
-free
-ommental
haustra
tenaie coli shorten the wall of the bowel
produces these sacculations
where do haustra cease
rectosigmoidal
arterial supply to the hindgut
inferior mesenteric
transverse distal 1/3 is left colic
sigmoid receives from branch of the inferior mesenteric called sigmoid
venous drainage of the transverse colon
middle colic
empties to the superior mesenteric
venous drainage of the descending colon
left colic
to the inferior mesentery
venous drainage of the sigmoid
sigmoid veins
to the inferior mesenteric