suprasternal

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.

得上间隙应是颈深筋膜浅层和舌下肌筋膜围成，而不同于以往教科书中述的颈深筋膜浅层分为两层附着于形成。