Chapter 7

Chapter 7 -
the skin structure and growth By: Sofia Belmontes-Calvilo Figure 7-1 The Layers of the Skin Stratum Corneum; The outer layer of the epidermis, the layer we see.
Stratum lucidum; transparent layer just under the skin surface; consisting of small cells through which light can pass.
Stratum granulosum; where cells are dead and are pushed to the surface to replace cells that are shed from skin surface.
Stratum Spinosum; The Beginning of the process that causes skin cells to shed from the skin surface layer.
Stratum Germinativum; deepest layer of the epidermis, the live layer which produces new epidermal skin cells and is responsible for the growth of the epidermis Healthy Skin Skin; natural external protective covering of the body.
Healthy skin is slightly moist,soft, and flexible with a texture that ideally is smooth and fine - grained. Healthy Skin The Thickest Skin (Sole of the Feet) The Thinnest Skin (EyeLid) Differences Dermatologists physician engaged in the science of treating the skin,its structure, functions,and diseases Esthetician A specialist in the cleaning ,preservation of health, and beautification on the skin and body. Figure 7-2 The Reticular Layer. The Reticular Layer networks: h Skin nourished the skin is nourshed Nerves of the skin Examples : Cold receptors can feel ice
pain receptors feel if there being pinched by an ant.
touch receptors know if when someone rubs against a person
heat recpetors feel when a match is to touch them
while pressure receptors can sense when there skin is being grabbed Figure 7-3 Skin Color The Layers of The Skin