{"id":1499,"date":"2019-07-25T19:26:42","date_gmt":"2019-07-26T00:26:42","guid":{"rendered":"https:\/\/my.dev.vanderbilt.edu\/pdbbootcamp\/?page_id=1499"},"modified":"2019-08-01T08:30:45","modified_gmt":"2019-08-01T13:30:45","slug":"gut-organogenesis","status":"publish","type":"page","link":"https:\/\/my.dev.vanderbilt.edu\/pdbbootcamp\/home\/2019-projects\/chick-gut\/chick-development\/gut-organogenesis\/","title":{"rendered":"Gut Organogenesis"},"content":{"rendered":"

\"IMG_0277\"The G.I. tract is developed from epithelial tissues derived from the endoderm. The fore, mid, and hindgut are all differentiated for their specific roles in digestion and nutrient absorption. A chicken\u2019s digestive system includes a crop, gizzard, proventriculus, ventricululs, <\/strong>and caeca<\/strong> as distinctive digestive organs compared to a human. The crop is mainly for food storage, the proventriculus\/gizzard is similar to the stomach where a majority of food breakdown occurs, the ventriculus is similar to the small intestine where it mechanically digests food, and the ceca are pouches for absorption and food fermentation.<\/p>\n

Embryonic gut development begins fore gut extending caudally through the endoderm<\/strong>. First closure of\u00a0an intestine\u00a0is the\u00a0post-umbilical gut in the tail bud. By then end of day 3, the umbilicus begins to close towards the pancreatic bud. On day 4 a short and narrow colorectal region is now apparent.<\/div>\n
There is much rotation and displacement of the gut throughout development that is best described step-by-step through the work of Bridget R. Southwell’s Staging of Intestinal Development of the Chick Embryo<\/a>.<\/div>\n
Below are some of her illustrations of the complex embryonic gut.<\/div>\n
\n
\"Fig.
Fig. 2 Southwell 2006. Intestine and embryo outline from stage 18. The protrusions from the open flap are the enteric nerves.<\/figcaption><\/figure>\n<\/div>\n
\n
\"Fig
Fig 3. Southwell 2006. HH Staging 31 of Embryonic Chick<\/figcaption><\/figure>\n<\/div>\n

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 <\/p>\n","protected":false},"excerpt":{"rendered":"

The G.I. tract is developed from epithelial tissues derived from the endoderm. The fore, mid, and hindgut are all differentiated for their specific roles in digestion and nutrient absorption. A chicken\u2019s digestive system includes a crop, gizzard, proventriculus, ventricululs, and caeca as distinctive digestive organs compared to a human. The crop is mainly for food…<\/p>\n","protected":false},"author":8393,"featured_media":0,"parent":1497,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"tags":[],"class_list":["post-1499","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/my.dev.vanderbilt.edu\/pdbbootcamp\/wp-json\/wp\/v2\/pages\/1499","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/my.dev.vanderbilt.edu\/pdbbootcamp\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/my.dev.vanderbilt.edu\/pdbbootcamp\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/my.dev.vanderbilt.edu\/pdbbootcamp\/wp-json\/wp\/v2\/users\/8393"}],"replies":[{"embeddable":true,"href":"https:\/\/my.dev.vanderbilt.edu\/pdbbootcamp\/wp-json\/wp\/v2\/comments?post=1499"}],"version-history":[{"count":17,"href":"https:\/\/my.dev.vanderbilt.edu\/pdbbootcamp\/wp-json\/wp\/v2\/pages\/1499\/revisions"}],"predecessor-version":[{"id":2225,"href":"https:\/\/my.dev.vanderbilt.edu\/pdbbootcamp\/wp-json\/wp\/v2\/pages\/1499\/revisions\/2225"}],"up":[{"embeddable":true,"href":"https:\/\/my.dev.vanderbilt.edu\/pdbbootcamp\/wp-json\/wp\/v2\/pages\/1497"}],"wp:attachment":[{"href":"https:\/\/my.dev.vanderbilt.edu\/pdbbootcamp\/wp-json\/wp\/v2\/media?parent=1499"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/my.dev.vanderbilt.edu\/pdbbootcamp\/wp-json\/wp\/v2\/tags?post=1499"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}