| A | B |
|---|
| STRATUM CORNEUM | outermost, roughest layer of epidermis made up of dead skin cells |
| STRATUM LUCIDUM | clear layer of epidermis that is only found in thick skin |
| STRATUM GRANDULOSEUM | epidermal layer that forms keratinocytes |
| STRATUM SPINOSUM | thickest layer of epidermis that prevents foreign material from passing through the epidermis |
| STRATUM BASALE | one cell thick epidermal layer, also referred to as the Stem cells of the epidermis |
| EPIDERMIS | outer skin layer made up of stratified squamous epithelial tissue |
| DERMIS | middle skin layer that circulates blood, contains sensory nerves, and |
| PAPILLARY LAYER | upper layer of the dermis that form friction ridges |
| THICK SKIN | classification of skin with 5 layers of epidermis |
| THIN SKIN | classification of skin with 4 layers |
| FRICTION RIDGES | creases that allow skin to flex and help hands and feet to grasp objects |
| RETICULAR LAYER | elastic dermis layer that contains hair follicles and sweat glands |
| HYPODERMIS | lower layer of the skin made up of fatty, adipose tissue |
| INTEGUMENTARY | made up of hair, sweat, oil glands, nails, and skin |
| MELANIN | color pigment found in hair, skin, and iris of the eye in animals |
| KERATINOCYTES | cells that are the building blocks of tough, fibrous keratin protein |
| KERATIN | protein that gives structure and waterproofing to hair, nails and outer skin layer |
| MELANOCYTE | synthesizes pigment that gives color to the skin |
| LANGERHANS CELLS | produced in bone marrow, cells that provide the first line of defense on surface of the skin |
| MERKEL CELLS | sensory cells found at the boundary of epidermis and dermis |
| AVASCULAR | no blood vessels |
| STRATUM BASALE | layer that connects the dermis to the epidermis |
| DERMIS | contains collagen, elastin, and nerve fibers |
| CAROTENE | a lipochrome, the least common skin pigment, that adds yellow color to the skin |
| HEMOGLOBIN | not a pigment, but a complex protein molecule. If oxygenated provides a pinkish tint to the skin and deoxygenated results in a bluish hue of the skin |
