Gadsden State Community CollegeNURSING 112TEAS 6 Science by Kelly
Integumentary System Epidermis: Most superficial layer of skin; entirely epithelial cells ● Does NOT contain blood vessels ● 5 layers o Stratum Corneum: "Top Layer"- Dead keratinocytes o Stratum Lucidum: "Clear Layer"- Colorless protein eleidin o Stratum Granulosum: "Thin Layer"- granular layer o Stratum Spinosum: "Spiny Layer"- Thickest layer, keratinocytes, immune dendritic cells, sensory cells o Stratum Basale: "Basal Layer"- Bottom layer; contains melanocytes. Dermis: Directly below epidermis; mostly connective tissue ● Contains blood vessels ● Sensory receptors ● Hair follicles ● Sebaceous glands ● Sweat glands ● Elastin and Collagen fibers Hypodermis/SubQ: Connective tiss
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