Submental Space

The submental space is a fascial space of the head and neck sometimes also termed fascial spaces or tissue spaces.
Submental space. Subphrenic space the space between the diaphragm and underlying organs. The submental space is a deep compartment of the head and neck that lies in the midline submental triangle below the chin medially to the submandibular spaces with which it freely communicates. Subdural space a narrow fluid containing space often only a potential space between the dura mater and the arachnoid. Some authors include the submental space as a component of the submandibular or submaxillary space 1 2.
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