HAP Vocab Week 2

consists of areolar and adipose tissue, serves as storage for fats abd contains large blood vessels that supply skin

deepest layer of epidermis, contains single row of cuboidal or columnar keratinocytes, some stem cells that undergo cell division to produce new keratinocytes

Above Basale, layer 4, contains 8 to 10 layers of keratinocytes, thesew shrink and pull apart, thornlike

about middle of epidermis, 3 to 5 layers of keratinocytes, flat, undergoing apoptosis, little grains, darkly stained granules of protein keratohyalin

present only in thick skin, 3 to 5 layers flattened clear dead keratinocytes

25 to 30 layers flattened dark keratinocytes, continuously shed and replaced

keratinized stratified squamous epithelium, 4 types cells, keratinocytes, melanocytes, Langerhans cells, and Merkel cells

tough fibrous protein protects skin and tissue from heat, microbes and chemicals

8% epidermal cells, produce pigment melanin,

90% epidermal cells, arranged in 4 or 5 layers produce keratin

oval pressure receptor in dermis, lamellated corpuscle

dendrites that lack any structural specialization

Consisting of strong connective tissue

small fingerlike structures project into the epidermis

mole, overgrowth of melanocytes

surround hair root, made of external and internal root sheath

dermis to hair root, goosebumps

oil glands, connected to hair follicles

wound to dermis and subcutaneous layer

blood clot forms in wound and loosely closes wound

clot becomes scab, epithelial cells migrate beneath wound to bridge wound

Growth of epithelial cells beneath scab,

Scab goes away once epidermis is back to normal thickness

raised scar within boundaries of original wound