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What are we learning?

What are we learning?. Functions Purpose Why do we have it? Structure What is it made of? Arrangement Parts Care Prevent injury and disease How to keep the system healthy Problems Diseases, annoyances….

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What are we learning?

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  1. What are we learning? • Functions • Purpose • Why do we have it? • Structure • What is it made of? • Arrangement • Parts • Care • Prevent injury and disease • How to keep the system healthy • Problems • Diseases, annoyances…

  2. Which organ Is the largest and has more functions than any other organ?Your SKIN!!!!Integumentary System

  3. Objectives • Function • Name 2 of the 3 functions of the skin. • Explain how the body regulates temperature. • Structure • Name the 2 layers of the skin. • Label 6 parts of the skin diagram from memory. • Care • Explain 2 ways to care for the skin. • Name 2 foods that contain Vitamin A. • Problems • Explain 3 problems for the skin. • Activity • Present information on the prevention, description, cure & treatment of a skin disease to the class in the form of a mind map.

  4. 3 Functions 1. Protective cover for body • Barrier between organs and outside world • Shields from • Injury • Invasion of pathogens • UV rays 2. Regulates body temperature • When you’re hot the blood vessels enlarge & heat escapes • Sweat glands release perspiration

  5. 3 Functions 3. Sense world around you • Nerve endings respond to • Touch, pain, pressure, temperature

  6. Structure-2 Main Layers • Epidermis: outer, thinner layer • Dead & living cells • Some cells produce melanin • Pigment that gives skin, hair, iris (eye) their coloring • The more melanin the more the protection from UV (ultraviolet) rays • Dermis: inner, thicker layer • Gives skin its elasticity • Sweat glands, blood vessels More melanin

  7. Care • Good hygiene • Wash face morning & night • Daily shower/bath slows bacteria growth that causes body odor • Balanced diet • Vitamin A • Milk, egg yolks, liver, green leafy & yellow vegetables, yellow fruits • Wear sunscreen

  8. Group Work * Problems Activity • Directions • Create a mind map or outline of a problem to share with the class • You must use the following 5 titles: • Description • what it looks like • Prevention • How to stay away from the problem • Cure & Treatment • How to get rid of the problem • Pathogen • Virus, bacteria, fungus… • Transmission • Is it contagious? Can it be passed from person to person?

  9. Problems • Ringworm • Athlete’s Foot • Boil

  10. 4. Warts

  11. Problems 5. Moles • Psoriasis • Blister

  12. Problems • Corn/Callus • Skin Cancer 10. Acne

  13. Problems • Ringworm • Fungal infection • Forms a ring-shaped, scaly, reddened or blistery patch • Athlete’s foot • Fungal infection between toes • Wearing shoes & sweating • Highly contagious • Wear “shower shoes” in public locker rooms

  14. Problems • Boils • Inflamed, pus-filled • Infected hair follicle • Never squeeze or burst • Spreads infection • Warts • Contagious growth caused by viruses • Most are harmless & painless • Moles • Small, slightly thickened brown spots • Usually harmless • If there is a dramatic change (grows, color, bleeds) see a doctor (may be skin cancer)

  15. Problems • Blister • Raised areas filled with watery fluid • Skin rubbing (foot against shoe) • Protect from breaking • Callus • Thickened skin from continuous friction and pressure • String instrument musicians • Treatment • Rub with a pumice • Corn • Callus on toe from tight fitting shoes Pumice

  16. Problems • Psoriasis • Normal rate of cell production is speeded up and cells pile up faster than they can be shed • Triggered by emotional stress, damage to skin or period of generally poor health • Thickened patches of inflamed, red skin covered by white, flaking scales • Treatment: physician

  17. Problems • Vitiligo • Patches of skin lose color • Extremely sensitive to sunlight • Believed to be an absence of skin cells that produce melanin • No cure • In 30% of the cases the skin color returns naturally

  18. Problems • Acne • Inflammation of hair follicles and sebaceous glands • Inside each hair follicle is a sebaceous gland that produces an oily substance called sebum that lubricates the skin • If body produces too much oil, it might be trapped in hair follicle, bacteria can multiply in the blocked follicle and become inflamed causing a pimple

  19. Problems • Eczma • Redness, flaking and/or blistering • MOVIE!!! • http://www.healthcentral.com/bcp/April_03/flash_content/blausenplay.asp?id=141&page=blausen&ap=446&brand=5

  20. Resources • Skin Layers • http://www.wvhc.org/imagepages/8912.htm • Ringworm • http://www.iswa.com/sm99c.html • Athlete’s Foot • http://athletesfoot.com/scalyfootpage.htm • Psoriasis • http://www.psoriasis.umich.edu/psoriasispictures.html • Pumice • http://www.uncommongoods.com/item/item.jhtml?catId=3&itemId=10258 • Eczma • http://www.healthcentral.com/bcp/main.asp?ap=446&brand=5

  21. Textbook Outline • Functions • Providing a protective covering • Regulating body temp • Sense the world around you • Structure • Epidermis • Dermis • Care • Problems • Ringworm • Athletes Foot • Boils • Warts • Moles • Psoriasis

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