käibesüsteem

A käibesüsteem, often translated as circulation system or circulatory system, refers to the network responsible for transporting substances throughout an organism. In biological contexts, this typically involves the movement of blood, lymph, or other bodily fluids. The primary function of a käibesüsteem is to deliver oxygen, nutrients, hormones, and other essential molecules to cells and tissues, while simultaneously removing waste products such as carbon dioxide and metabolic byproducts.

The complexity of a käibesüsteem varies greatly between different species. Simpler organisms may have a rudimentary system where substances diffuse directly or are moved by simple fluid currents. More complex organisms, like vertebrates, possess a highly developed käibesüsteem, often comprising a heart, blood vessels (arteries, veins, capillaries), and blood. The heart acts as a pump, propelling the fluid through the intricate network of vessels.

In a broader, non-biological sense, the term käibesüsteem can also describe any system involving the circulation or flow of items, information, or currency. For example, an economic käibesüsteem would pertain to the flow of money and goods within an economy. The fundamental principle remains the same: a mechanism for movement and distribution throughout a defined system.