Saans le waala system

Saans le waala system uu system hae jisse dehin carbon dioxide ke bahaar nikaale aur oxygen ke bhittar le hae. Iske pahila step hae saans lena, jisse oxygen waala hawaa fefrraa me jaae hae aur jaada carbon dioxide waala hawaa bahaar nikaalna. Duusra step me fefrraa me oxygen khuun me diffuse he hae aur khuun me se carbon dioxide khuun se bahaar diffucse hoe hae. Tiisra step me cells oxygen ke kaam me laae ke energy banae hae aur carbon dioxide ke bahaar khuun me kare hae.