Chapter 15 Lesson 1

1. Chapter 15Lesson 1 Personal csare and consumer choices

2. Skin • The skin is the body’s largest organ • It controls body temperature • It is a water barrier when you swim

3. skin • It allows you to feel texture • It protects you from germs

4. Parts of the skin

5. The outermost layer of skin is epidermis • The thick inner layer of skin is dermis • Subcutaneous layer connects your skin to muscles and bones

6. Skin problems • Acne is formed from too much oil in skin • Dermatologist is the doctor that treats skin problems • Minor acne is treated by over the counter products

7. Serious cases of ace requires a visit to the doctor • Bad odor is caused by bacteria • Exposure to the sun for long times can cause sun burn or skin cancer

8. We should wear sun screen SPF 15 or more when we work under the sun from 10 am to 4 pm.

9. Your hair and nails • Dandruff is a common hair problem which is flaking of the outer layer of dead skin cells • Anti dandruff shampoo help solving this problem

10. Head lice is another common hair problem where lice are insects grow between hair. • A special shampoo is used to kill them • We shouldn’t share out personal brush and comb with others

11. Hangnail is a split in the cuticle near fingernail edge • Ingrown toenail is common and occurs when toenail pushes too far into skin. The nail should be cut straight not curve

12. Your Teeth

13. Your Teeth • Teeth chew and grind food. They are also necessary for proper speech • The gum serves as an anchor for your teeth. Gingivitis is caused when the gum is inflamed and bleed easily

14. Caring for the gum and teeth is essential we should floss and brush at least twice daily • Plaque is a soft colorless film containing bacteria that coats your teeth.

15. When plaque is becoming hard it changes to tartar that is difficult to remove • A hole in the tooth is called cavity

16. Good eating habits keep your teeth healthy. Dairy products are important because they are rich with calcium • You should see dentist twice a year to check your teeth

17. Your Eyes

18. The eyes are the organ for sight • Nearsightedness is when a person can see nearby objects clearly but distant objects blurry • Farsightedness is seeing far objects more clearly than close objects

19. Astigmatism is when images appear blurry due to irregular shaped lens or cornea • Most vision problems can be treated by using eyeglasses , contact lenses, and laser surgery

20. It is important to protect your eyes from the sun , dust, and injury • Wear sunglasses that have lenses with UV protection • Wear goggles if you do ay activity that might hurt your eyes

21. Avoid rubbing your eyes especially when your hands are dirty • Check your vision regularly • Change your lenses regularly

22. Your Ears

23. The ears interpret sounds, and control our balance from middle ear • The most common problem is hear loss. Hearing aids should be used in this case

24. Decibel is the measure of the loudness of sound • Tinnitus ( ringing in the ears)is caused from exposure to loud noises for a long time

25. To protect your ears never insert anything inside ears. Avoid loud noises. Cover ears in cold weather to avoid frostbite. Wear earplugs to reduce noise and avoid water. See doctor when you have earache