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Introduction
Introduction
The Integumentary System includes the skin, hair, nails, and various glandular structures contained within
The Skin is considered the largest organ of the human body
Epidermis
Epidermis
From Deep to Superficial:
Stratum Basale: Mitotically active layer
Stratum Spinosum: Contains Dendritic (Langerhans) cells for Immunity
Stratum Granulosum
Stratum Lucidum: Only in palms of hands & soles of feet
Stratum Corneum: very thick layer of dead cells
Skin of the Scalp (thin skin)
Skin of the Scalp (thin skin)
No Stratum Lucidum
Sudoriferous gland: sweat (eccrine)
Sebaceous gland: oil (holocrine)
Skin in Armpit
Skin in Armpit
Apocrine Sudoriferous gland:
Malodorous sweat glands (armpit, anogenital)
Skin on Sole of Foot (thick skin)
Skin on Sole of Foot (thick skin)
Stratum Lucidum only exists in thick skin
Palms of hands, Soles of feet
Meissner's Corpuscle:
Fine touch & vibration
Pacinian Corpuscle:
Deep pressure & vibration
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