The human digestive system refers to the organs that take in food and break them down. Digestion describes the complex process that enables the nutrients in food to enter the body and its cells.

Gut organoids mimic the stomach, small intestine, and colon in 3D. Learn how these lab-grown models are advancing digestive ...

Anatomist, Claire Smith, is showing me a real human digestive system. 'It's a vast, alien-looking mass of tubes. 'And this is the stomach.' DR CHRIS VAN TULLEKEN:I guess I thought it would be a ...

Your heart's will to beat, to keep going, is incredibly strong. If the heart fails, so does everything else… Because it's your heart's job to deliver to every cell, to every nook and cranny of ...