belégzésnek

Belégzésnek is a Hungarian word that translates to "inhalation" or "breathing in" in English. It refers to the process of drawing air into the lungs. This is a fundamental physiological action essential for life, allowing the body to take in oxygen and expel carbon dioxide.

The act of belégzésnek is part of the larger respiratory cycle, which also includes exhalation (kilégzésnek). During inhalation, the diaphragm contracts and moves downward, while the intercostal muscles contract, lifting the rib cage upward and outward. These actions increase the volume of the thoracic cavity, creating a lower pressure within the lungs compared to the external atmosphere. Consequently, air rushes into the lungs to equalize the pressure.

This intake of air is crucial for cellular respiration, the process by which cells generate energy. The oxygen absorbed during belégzésnek is transported by the blood to all tissues and organs. Conversely, carbon dioxide, a waste product of metabolism, is transported from the tissues back to the lungs to be expelled during exhalation. The rhythm and depth of belégzésnek are regulated by the respiratory center in the brainstem, which responds to changes in blood gas levels and other physiological signals. Involuntary control ensures continuous respiration, though voluntary control over breathing is also possible to a certain extent.