kilégzéskor

Kilégzéskor is a Hungarian word that translates to "during exhalation" or "when exhaling" in English. It refers to the phase of breathing when air is expelled from the lungs. This process is a fundamental part of respiration, the biological process of gas exchange in living organisms.

In humans and most animals, exhalation is typically a passive process. It occurs when the diaphragm relaxes and moves upward, and the intercostal muscles relax, causing the rib cage to move downward and inward. This reduction in chest cavity volume increases the pressure within the lungs, forcing air out. While often passive, exhalation can be made active, particularly during strenuous physical activity, by the contraction of abdominal muscles.

The air exhaled during kilégzéskor is rich in carbon dioxide, a waste product of cellular metabolism, and contains less oxygen than inhaled air. This expelled air also carries moisture and heat from the body. The rhythmic cycle of inhalation and exhalation, including the phase of kilégzéskor, is controlled by the respiratory center in the brainstem. The frequency and depth of breathing are adjusted based on the body's metabolic needs and external conditions. In various contexts, "kilégzéskor" might be used in discussions about physiology, medicine, or even in describing the sound of breathing.