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.

Related Articles

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