Figure 8
Scanning electron microscopy images of native and acellular human scalp samples. The native scalp sample (A) shows an epidermal (colored in red), dermal (colored in purple) and subcutaneous (colored in green) layering as expected. The white arrow indicates a hair shaft, the dotted line shows the polygonal corneocytes of the scalps’ most superficial cell layer. Subcutaneous fat is indicated by the white asterisk. In contrast, in the acellular sample (B) only the dermis (purple color) and subcutis (green color) can be depicted. According to A, the arrow and asterisk indicate a hair shaft and subcutaneous fat, respectively. The organization of the native scalp’s surface can be studied in greater detail in (C). The white arrow points at a hair shaft and the dotted white line highlights the squamous organization of the corneocytes. The absence of the epidermis in the acellular scalp is shown in (D), where the dermal papillae (black arrow). By means of acellularization, the dermal entrance to the hair follicle (white asterisk) becomes apparent. White arrow, hair shaft. Scale bars, 200 μm.
