[问答题] 试述中毒导致心脏骤停的机制。

来源于节肢动物的中药（） ["桑螵蛸","斑蝥","僵蚕","蜜蜂","全蝎"] 钩藤具有的功效是（） ["平肝阳","熄肝风","清肝热","疏肝气","养肝血"] 来源于软体动物的中药（） ["石决明","珍珠","牡蛎","海螵蛸","桑螵蛸"] 水蛭、虻虫的共同功效是（） ["利尿通淋","活血通经","破血逐瘀","散结消癥","通经下乳"] 药用部位为动物生理产物的是（） ["麝香","蟾蜍","五灵脂","蝉蜕","蜜蜂"] 试述中毒导致心脏骤停的机制。