ANATOMICAL TRAVELOGUE / SCIENCE PHOTO LIBRARY ANATOMICAL TRAVELOGUE / SCIENCE PHOTO LIBRARY
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Visualisation of a cross-section of the skin of the scalp. The epidermis (top) is composed of keratinized epithelial cells. The dermis (middle) is composed of mainly connective tissue over subcutaneous fat (yellow). Hair follicles (of which there are 100,000 on the human scalp), sebaceous glands, and sweat glands of the subcutaneous region traverse the layers to the exterior scalp.
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