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Structures of Skin - 🧠 ANSWER ✔✔Epidermis, Dermis, and Hypodermis
Epidermis - 🧠 ANSWER ✔✔Outermost layer of skin
Dermis - 🧠 ANSWER ✔✔Middle layer of skin
Hypodermis (subcutaneous layer) - 🧠 ANSWER ✔✔Deep to the dermis; not
technically part of the skin; made of adipose tissue; helps insulate
Functions of Skin - 🧠 ANSWER ✔✔Protection, synthesis of vitamin D,
sensation, thermoregulation, and non-verbal communication
, Cells of the Epidermis - 🧠 ANSWER ✔✔Stratified squamous epithelium,
keratinocytes, melanocytes, langerhans cells, and merkel cells
Keratinocytes - 🧠 ANSWER ✔✔An epidermal cell that produces keratin.
Melanocytes - 🧠 ANSWER ✔✔Cells that produce melanin
Langerhans Cells - 🧠 ANSWER ✔✔Epidermal macrophages that help
activate the immune system
Merkel Cells - 🧠 ANSWER ✔✔Touch receptors in the skin
Accessory Structures of the Skin - 🧠 ANSWER ✔✔Sweat glands, oil
(sebaceous) glands, hair, and nails
Thick Skin - 🧠 ANSWER ✔✔- Covers the palms of the hands and soles of
the feet
- Has 5 layers of keratinocytes
- Stratum corneum, stratum lucidum, stratum granulosum, stratum
spinosum, stratum basale
Thin Skin - 🧠 ANSWER ✔✔- Covers most of the body
- Has 4 layers of keratinocytes