Pyloric sphincter regulates the opening of
Pharynx into oesophagus
Oesophagus into stomach
Stomach into duodenum
Ileum into large intestine
Layers of Stomach -
Circular layer of muscle
- wherein
Layer of smooth muscle fibres - the middle layer of muscle is called the circular layer. It wraps around the body of the stomach and extends downwards to form the pyloric sphincter (via which the contents of the stomach exits into the small intestine).