上胸骨

It is found the suprasternal space should be enclosed by the superficial layer of the deep cervical fasciae and the fasciae of the infrahyoid muscles, rather than the past opinion of the textbook.

得出胸骨间隙应是由深膜浅层和舌骨膜围成，而不同于往教科书中描述的由深膜浅层分为两层附着于胸骨形成。