Development of stomach

Development of stomach

 * At week 4, spindle-shaped enlargement of the front intestine of the embryo,
 * the shape and placement change due to the different growth rate of individual walls and the change of the position of organs in the vicinity,
 * the stomach rotates 90 ° around its longitudinal axis (originally the left side ventrally, originally the right dorsally),
 * therefore, the vagus nerve also moves forward from the originally left side and backwards from the right side,
 * originally the posterior wall grows faster than the anterior wall, therefore a major and minor curvature is formed,
 * the cranial and caudal part also shifts from its central axis,
 * the caudal part (pylorus) moves to the right and up,
 * the cranial part (cardia) moves left and down,
 * the axis of the stomach now points from top to bottom and to the right.

Congenital malformations of the stomach

 * Pyloric stenosis - hypertrophy of the gastric muscle in the pyloric area,
 * one of the most common defects, probably occurs already in the fetal period,
 * restriction of digestion, severe vomiting.