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Deepest layer of Epidermis. Single layer. Where mitosis takes places. Melanocytes, melanosomes, and Merkel cells.
Second deep layer of the Epidermis. Several layers. Keratinocytes, melanin granules, and Langerhan's cells.
Outer layer if Epidermis. 20 to 30 layers. No nuclei. Glycolipids from the cell matrix cause this layer to be waterproof.
Skin Pigment. Yellow, Redish-brown, black. Protects DNA from UV radiation. Chemical layer of skin.
Superficial layer of Dermis. Areolar loose connective tissue. Abundant in blood vessels, pain receptors, and Meissner's Corpuscles.
Touch receptor in the papillary layer of the dermis. Tactile disc for light touch.
Caused by dermal papillae. Has sweat glands along crest. Leads to the fingerprint on the epidermis.
Simple, coiled, and tubular. Most abundant. Palms, soles, forehead. Simple Cubodial Epithelium. Secrete sweat for overheating, or emotional response.
Found all over body except hands and feet. Secretes only sebum. Impedes H2O loss, bactericidal, lubricates and softens hair.
Full Thickness Burn
Third Degree burn. New skin can only regenerate from the edge. Usually requires surgery and grafting.
Basal Cell Carcinoma
Least fatal skin cancer. Starts in Basal layer of Epithelium. Slowly spreads to other layers until removed.
Squamous Cell Carcinoma
Skin cancer. Starts in the Spinosum layer. Can metastasize to the lymph nodes if not removed.
Most fatal skin cancer. Starts in the melanocytes. Can metastasize to the lymph and blood.
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