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Integumentary System: Skin Essentials & Functions

Explore the human integumentary system including the skin, hair, nails, and glands. Learn about its structure, functions, and common skin problems. Dive into the layers and glands of the skin for a comprehensive understanding.

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Integumentary System: Skin Essentials & Functions

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  1. Do Now: - Page 38 Fun Fact of the Day

  2. Page 38

  3. Do Now: Receive New Packet Put your name on that bad boy

  4. The Integumentary System • The human integumentary system includes skin, hair, nails, and some glands of the skin.

  5. Skin • Outer protective covering of the body; largest organ of the body

  6. Handout Functions of the Skin 1. 2. 3. 4.

  7. Handout Layers of the Skin • Epidermis – outer layer of the skin; made up of dead cells; comes in contact with the environment • Dermis – inner layer of the skin that contains blood vessels, nerves, glands, muscles and hair follicles • Subcutaneous tissue (fat) – layer of fat cells beneath the skin

  8. Handout Structure of the skin • Melanocytes – produce melanin, a dark brown pigment • Keratin – a tough fibrous protein that makes up the epidermis

  9. Handout Glands of the Skin • Sweat gland – produce perspiration, or sweat • Sebaceous gland – produce an oily secretion called sebum that keeps the epidermis flexible and waterproof

  10. Skin Problems – Add On Acne – develops when sebum and dead skin cells form plugs in hair follicles. Bacteria are often trapped in the plug and cause infection and inflammation

  11. Skin Problems – Add On Hives – red welts that form because of allergic reactions

  12. Skin Problems – Add On Melanoma – Skin cancer caused by excessive exposure to UV radiation from the sun and artificial radiation from tanning beds

  13. about the Skin

  14. Do Now: Page 9 ½ Homework: Page 939, 1 – 3

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