The Inferior Edge, the most extensive of the three, separates the laminal from the solar surface.
The anterior region, as is the laminal surface, is covered with foraminæ; in this case more minute.
As the name 'laminal' indicates, it is this surface which in the fresh state is covered by the sensitive laminæ.
The ascending branches penetrate the substance of the os pedis, and emerge by the numerous foraminæ on its laminal surface.
