The growth of new segments (body parts) in marine worms is controlled by a special growth zone, in which special stem cells are located. New segments then emerge by the division of these cells.

And for instance, learning all about the complexity of the liver and how it oversees such a variety of important conditions, a variety of important balances in our body and how it keeps us healthy ...

This procedure involves blocking the portal vein, which transports blood to certain segments of the liver. This causes the blood to flow more strongly through other segments of the organ.

Laparoscopic liver resection in posterosuperior segments was linked to a shorter functional recovery time and postoperative hospital stay than open surgery in a recent clinical trial.

Surgeons externally attached a pig liver to a brain-dead human body and watched it successfully filter blood, a step toward eventually trying the technique in patients with liver failure.