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Glossary of Medical Terminology Chapter 03 Pg 94

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Epithelium
cells covering external and internal surfaces of the body
epidermis
thin outer layer of the skin
squamous cell layer
flat, scalelike epithelial cells comprising the outermost epidermis
basal layer
deepest layer of epidermis
melanocyte
cell in the basal layer that gives color to the skin
melanin
dark brown to black pigment contained in melanocytes
dermis (corium)
dense, fibrous connective tissue layer of the skin (also know as corium)
sebaceous glands
oil glands in the skin
sebum
oily substance secreted by the subaceous glands
sudoriferous glands
sweat glands (sudor=sweat, ferre=to bear)
subcutaneous layer
connective and adipose tissue layer just under the dermis
collagen
protein substance in skin and connective tissue
hair
outgrowth of the skin composed of keratin
nail
outgrowth of the skin at the end of each finger and toe, composed of keratin
keratin
hard protein material found in the epidermis, hair, and nails

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