Search for tag: "sphincter"

Digestive System Overview Pt.4

Digestive enzymes and the large intestine

From  Gavin Brown on January 7th, 2021 0 likes 42 plays 0  

Digestive System Overview Pt.2

Oesophagus and stomach

From  Gavin Brown on January 7th, 2021 0 likes 57 plays 0