léghólyaghálózat

A léghólyaghálózat, commonly referred to as alveolar network or pulmonary alveolar network in English, describes the intricate and extensive structure of alveoli within the lungs. This network is the primary site of gas exchange in the respiratory system, where oxygen from inhaled air diffuses into the bloodstream and carbon dioxide from the blood diffuses into the air to be exhaled. The alveoli are tiny, sac-like structures, and they are clustered together like bunches of grapes, forming an enormous surface area. This vast surface area is crucial for efficient gas transfer.

The walls of each alveolus are extremely thin, typically only one cell thick, and are surrounded by a dense network of capillaries, which are the smallest blood vessels. This close proximity between the alveolar air and the capillary blood facilitates rapid diffusion of gases. The léghólyaghálózat is designed for maximum efficiency, with each lung containing millions of these tiny air sacs. This elaborate design ensures that the body receives an adequate supply of oxygen to sustain cellular respiration and effectively removes waste carbon dioxide. The health and integrity of this network are paramount for respiratory function.