Stomach development

• In the 4th week, spindle-shaped expansion of the foregut embryo,
• the shape and placement changes due to the different growth rate of the individual walls and by changing the position of the organs in the surroundings,
• stomach rotates 90° around its longitudinal axis (originally left side ventrally, originally right dorsally),
  • therefore the vagus nerve also moves from the originally left side to the front and from the right side to the back,
• originally, the back wall grows faster than the front, which is why 'curvatura major et minor is created,
• the cranial and caudal parts also move from their central axis,
  • the caudal part (pylorus) moves to the right and up,
  • the cranial part (cardia) moves to the left and down,
• stomach axis now goes from top left to bottom right.

Congenital defects of the stomach

• Stenosis of the pylorus - hypertrophy of the stomach muscles in the pyloric area,
  • one of the most common defects, it probably arises already in the fetal period,
  • restriction of digestion, severe vomiting.

 For more information see Pylorostenosis.

Links

Related Articles

• Development of the digestive system
• Development of esophagus
• Development of mesogastria
• Development of liver and gallbladder
• Development of duodenum
• Intestinal development

References

• SADLER, Thomas W.. Langman's Medical Embryology. 10. edition. Prague : Grada Publishing, a.s., 2011. 414 pp. pp. 237 - 244. ISBN 978-80-247-2640-3.

• MOORE, Keith L – PERSAUD, T.V.N. The Birth of Man : Embryology with a clinical focus. 1. edition. 2000. 564 pp. ISBN 80-85866-94-3.