Angle of His

Angle of His
The angle of His is formed between the esophagus (the tube arriving at the top of the image) and the cardia (position 6)
Anatomical terminology

The angle of His, also known as the esophagogastric angle, is the acute angle created between the cardia at the entrance to the stomach, and the esophagus. It helps to prevent acid reflux of stomach acid into the esophagus. It is commonly undeveloped in infants, making acid reflux more common.