Embryology of the GIT PDF

iiij;7 V ,/ I Ea rl y develop ment of the digestive EfVlBR VOl OGV OF THE GIT system...

iiij;7 V ,/ I Ea rl y develop ment of the digestive EfVlBR VOl OGV OF THE GIT system ,. l The gastrointestinal tract is the main organ. ORGANOGENESIS OF S1jOMAC H1 system derived from.tbe endodermal germ DUODEN U/\/1, LIVER, GALL BLADDER, la'yer, thus the__g!.LUs anendode.rm-derived PANCREAS AND Sf LEEN structure. A MESENTRIES OF d uT ;;.. I The developing gut is connected by the dorsal tpesentry or. dorsal mesoGastrium. - 1n the foregut, another mesen try i.e. the ~s..eotry gr ven tra l ~ Mesentery is a double layer peritoneum; provides route : for mesogastrium connect it to the anterior abdomonal wall. Blood Vessels, lymphatics and nerves... tHeI abd om,nope Peritoneum is the serous membrane lmmg. Iv,c. cav,ty. ~ L.,gaments are areas of peritoneum · between two organ~, ·1.e. the hepatoduodenal ligament, the splenorenal ligame,1t etc. Visceral peritoneum covers the externa(surfaces of most digestive organs and is continuous with the parietal periton eum that lines the body wall ffe, There are two omenta, the gre:ter anc! lesser omenta which Between the two peritoneums is the peritone~: ::avity. are made up of the folds of peri toneum extending from the stomach's greater and lesser curvatures respectively. As the ~erttoneum envelopes the abdomir.ul organs, it folds over 1tseif These folds of peritoneum contain fat, lymphatics, and neuro,ascular supply to the abdominal viscera. The folds are ci::1ss1'ied as either mesenter1es ligaments or omenta 1  iNTR~~ rtRlh) ,\ l f ,\/ ,\\ /) r,f Ti~() _, rrr, 1H),\1 r ,\L l) f,l; \ ,\J(,.. -,~.. - ,... tr·', \ f_;_.. L---l I...__,; :J - ~- j ~ ~ ~7 - L..::._J.. - - - - - ,..... - - ~ wiffl vlsce'81 perhoneum; ffiey.,.; only ~red......... ,.. _ , anct dat~eum only covers their anterior surface. ,._,_ befaofllw r~ lnllo-poups: 1 and 2'.· ~.abDjl&lltu