In conclusion, the nitrogen narcosis is produced by the increase of the environmental pressure and therefore the increase of the partial pressure of the nitrogen, thus causing the nitrogen to dissolve in the blood. Because of this, it travels through the bloodstream to the lipid membrane of the neurons, changing the flow of ions and therefore the synaptic response, affecting the nervous system. With regard to decompression sickness, this is caused by the sudden drop in environmental pressure, causing the partial pressure of nitrogen to fall. This causes nitrogen to pass from the liquid to the gaseous state, forming big bubbles that remain in the bloodstream and also travel through the blood to the tissues, resulting in them being unable to be exhaled by the lungs and blocking blood flow.