In the upper diagram, the primary ridges of epidermis and dermis are depicted. Furrows separate the primary epidermal ridges at the free surface of the skin. The lower diagram shows the interpapillary pegs and secondary dermal ridges oranbsp;...
|Title||:||Scanning electron microscopy of normal and abnormal human skin|
|Author||:||Barbara Mill Hyde, Leopoldo F. Montes|