Home » Quiz » The organ that protects the main nerve cord is The organ that protects the main nerve cord is by Nkcoderz Subscribe Credit: Nkcoderz The organ that protects the main nerve cord is (a) skull(b) backbone(c) breast bone(d) chest bone The correct answer is (b) backbone. If You Like This Page Then Make Sure To Follow Us on Facebook, G News and Subscribe Our YouTube Channel. We will provide you updates daily.