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Download Integumentary-2404integumentarysystem02_28_07
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Integumentary System Made of several organs including •Skin •Hair •Nails •Sweat glands •Oil glands The Integumentary System Protects The Integumentary System Regulates Body Temperature The Integumentary System Synthesizes and Stores Vitamin D Lipids The Integumentary System Allows Sensations • • • • Touch Pressure Temperature Pain The Integumentary System Excretes and Secretes Secretes: • Precursor to Vitamin D • Melanin Excretes: • Water • Urea • Salts • Milk Structure of the Skin Epidermis Epidermis Keratinocytes and Melanocytes Thin vs Thick Skin Thin vs Thick Skin Stratum Corneum Dandruff Corns and Calluses Dermis of Skin Dermis of Skin Fingerprints Reticular Layer of Dermis Wrinkles Lines of Cleavage (Tension Lines) Structures in the Dermis Blood vessels Structures in the Dermis Meissner’s Corpuscles (Looks like cotton candy) Structures in the Dermis Pacinian Corpuscles Structures in the Dermis • • • • Exocrine glands Muscles (Arrector pili) Hair Nails Skin Color Cyanosis Accessory Structures of the Skin: Hair Hair Shaft and Hair Root Hair Shaft and Hair Root Have 3 Layers •Medulla •Cortex •Cuticle Hair Follicle and Hair Bulb Hair Follicle and Hair Bulb Functions of Hair • • • • Senses Guards Shields Protects Hair Color Sebaceous Glands Sebaceous Gland Sudoriferous (Sweat) Glands Sudoriferous (Sweat) Glands Eccrine Sweat Glands Apocrine Sweat Glands Axillary Hair Pubic Hair Apocrine Sweat Glands (wide lumen) Eccrine Sweat Glands (narrow lumen) Ceruminous Glands Nails Toe Nail Nail Root and Nail Matrix
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