During desaturation, where does inert gas diffuse after moving from the tissues into the bloodstream?

During desaturation, the process involves inert gases, such as nitrogen, moving from the tissues into the bloodstream as the body eliminates excess gases that were absorbed during a dive. Once these gases enter the bloodstream, they travel to the lungs, where they are expelled from the body with each exhalation.

This diffusion of inert gases happens because the partial pressure of the gas is higher in the tissues compared to the bloodstream, leading to a flow from the area of higher concentration to lower concentration. As the diver breathes out, the inert gases are released out of the body, preventing potential issues such as decompression sickness or nitrogen narcosis that can occur if these gases remain in the body for too long.

The other options do not accurately reflect the physiological process of how inert gases are eliminated from the body after they have diffused into the bloodstream during desaturation.