El sistema urinario regula la presión

spanish

Como el sodio retiene agua, se expande el volumen de sangre y aumenta la presión arterial. Por otro lado, los riñones controlan la presión arterial de varios modos. Si la presión arterial se eleva, aumenta la eliminación de sal y agua, lo que hace descender el volumen de sangre y normaliza la presión arterial.

english

Since sodium retains water, it expands blood volume and increases blood pressure. On the other hand, the kidneys control blood pressure in several ways. If blood pressure rises, the elimination of salt and water increases, which lowers the volume of blood and normalizes blood pressure.

answer:

well the blood rushes to the vessles in your pp (lol) it also happen because u see somthin erotic or pleasing somtimes it happenes by accdent or by purberty or an dream (know an an wet dream)

explanation:

answer:

i don't believe the ocean is purple, but it might once have been:

as for the sky, according to nasa:

"sunlight reaches earth's atmosphere and is scattered in all directions by all the gases and particles in the air. blue light is scattered more than the other colors because it travels as shorter, smaller waves. this is why we see a blue sky most of the time."