when we say nas chad gayi we mean that nas = vein. Why can't nas = arterie? Share with your friends Share 1 Nishi Dwivedi answered this Its not arteries or vein but it is muscle spasm which is referred as nas chadhna. 1 View Full Answer Sakshee Toshniwal answered this because arteries are situated deep inside but when there is a pressure on a vein we say nas chad gayi 0