alveolar air meaning in Hindi

Examples

1. This layer reduces the surface tension of the fluid that lines the alveolar air-space.
2. The fluid coating is produced by the body in order to facilitate the transfer of gases between blood and alveolar air.
3. In addition to desmosomes, all type I alveolar cells have occluding junctions that prevent the leakage of tissue fluid into the alveolar air space.
4. The changes brought about by these flows of individual gases into and out of the functional residual capacity necessitate the replacement of about 15 % of the alveolar air with ambient air every 5 seconds or so.
5. It is only as a result of maintaining the composition of the 3 liters alveolar air that with each breath some carbon dioxide is discharged into the atmosphere and some oxygen is taken up from the outside air.
6. The nitrogen concentration is initially zero because the subject is exhaling the dead space oxygen they just breathed in ( does not participate in alveolar exchange ), and climbs as alveolar air mixes with the dead space air.
7. The partial pressure of oxygen ( P _ _ 2 } ) in the arterial blood is measured in the out of the blood, and into the outside air, while increasing the uptake of O 2 from the alveolar air into the blood.
8. This is very tightly controlled not only by the monitoring of the arterial blood gases ( which accurately reflect composition of the alveolar air ) by the pulmonary capillaries, and are therefore responsible for directing the flow of air and blood to different parts of the lungs.
9. As the volume of the thorax decreases during exhalation, air escapes far more easily from the larger pulmonary airways than from the alveoli, simply because their connection to the outside air is more direct than is the connection between the alveolar air and the ambient air.
10. Similarly, since the blood arriving in the pulmonary capillaries has a P _ _ 2 } of also about 45 mmHg, whereas that of the alveolar air is 40 mmHg ( 5.3 kPa ), there is a net movement of carbon dioxide out of the capillaries into the alveoli.