锁颌韧带1. Chick eggshell breaking relies on cooperation of two tissues,lock jaw ligament and shell breaking muscle(named by author). 雏鸡破壳依靠两种组织协同作用来完成,即锁颌韧带和破壳肌(作者命名)。2) coracoclavicular 喙锁韧带 1. Meth