Lymphatic vessels

Veins and arteries well known, but a third type of vessel resembling veins was found. These vessels had thinner walls, carried “lymph”, or watery parts of blood. Took back interstitial fluid from outside of cells.
 Olof Rudbeck Sweden 1653 Lymphatic vessels

Veins and arteries well known, but a third type of vessel resembling veins was found. These vessels had thinner walls, carried “lymph”, or watery parts of blood. Took back interstitial fluid from outside of cells.