Spasms of this straplike muscle often result in wry neck or torticollis. Naim 20:17 The Muscular System Spasms of this straplike muscle often result in wry neck or torticollis. A) serratus anterior B) zygomaticus C) platysma D) sternocleidomastoid Answer: D Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+