Was ist eine Vene?

The video explains the role and structure of veins within the cardiovascular system. It begins by defining what makes a vein distinct, then provides an overview of the cardiovascular system, detailing how blood flows from the heart through arteries to capillaries and back via veins. The function and structure of veins are discussed, highlighting their thin walls, larger lumen, and the presence of valves to prevent backflow. The interaction between capillaries and veins is also covered, emphasizing the exchange of gases, nutrients, and metabolic products.

How do veins differ from arteries in terms of structure and function?

Explain the significance of valves in veins.