Figure 7.—

Model of epidermal cell behaviors in normal and perturbed wound healing. Cell behaviors during wound healing are indicated on a schematic template. On these templates, select cells contacting the wound edge are marked with blue nuclei, whereas select cells within the sheet in close vicinity to the wound are marked with red nuclei. Arrows indicate the direction of cellular migration toward the wound gap. The length of the arrow symbolizes the speed of the migrating cells (longer, fast; shorter, slow). A T-bar indicates that migration is blocked. Wavy arrows show improper directionality of migration. The bright green wound margin of class V indicates pronounced membrane fluorescence. The green central wound area of class VII indicates a large syncytial cell. See text for model details.