Published on July 5, 2016
1. Development of the stomach From 4 weeks to 8 weeks
2. Stomach • A stomach is a large hollow muscular organ which helps the nutrients to digest • It has no villi unlike the bowel (small) • It first starts as an unturned organ at 4 weeks • In the next weeks the stomach begins angling at the greater curvature than the lesser curvature • In 8 weeks the stomach reaches final anatomical location, end next to spleen and next to the liver
3. 4 weeks • The stomach of the 4 week embryo is not yet turned in an angle • In 4 weeks the mesenterial relationship in the abdominal cavity relates to the whole system known as the peritoneum • This occurs when the A/P position occurs in these stages • The stomach’s ; part; the lumen lacks any digestion yet ; often • In next few days the stomach turns in an angle and flexes to the left, and begins rotation • It is supplied by right and left vagus nerves (10th cranial nerve)
4. 5 weeks • The stomach is slightly bent and the omental flexure becomes more prominent • The stomach is supplied by vagus nerves (CN X). And the Rest is supplied by vessels. It was vee being coated in a thin layer of secreting mucous layer in the interior • In 5 weeks all every other organ in the digestive tract begins to increase in size
5. 7 weeks • By now the stomach assumes the shape of a J. It positions in the anterior part of the abdomen • It is still supplied by vessels and nerves • The stomach continues flexing
6. 9 weeks • In 9 weeks the stomach has a greater difference between LC and GC, their noticeable curving • In the fetal period digestive tract is immature until they became mature for several months • In the adult human body stomachs are main part of nutritions • In 9 weeks the stomach reaches final anatomical position
7. 40 weeks • Rest of the digestive tract fully formed
8. Stomach organogenesis
Development of the Stomach, Omenta and Duodenum ... Finish. Finish
Due to more rapid growth of its dorsal portion, the stomach expands, leading to a greater and lesser curvature ...
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1. Development. 2016 Feb 15;143(4):554-65. doi: 10.1242/dev.124891. Stomach development, stem cells and disease. Kim TH(1), Shivdasani RA(2).
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