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The I ntegumentary System . Skin Nail Hair . SKIN TERMS. Epidermis Dermis Subcutaneous layer Melanin Pores Sebum. 7. Dermatologist 8. Hair follicles 9. Oil glands 10. Sweat glands 11. Adipose tissue. - PowerPoint PPT Presentation
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The Integumentary
System Skin Nail Hair
SKIN TERMS
1.Epidermis2.Dermis3.Subcutaneo
us layer4.Melanin5.Pores6.Sebum
7. Dermatologist8. Hair follicles9. Oil glands10. Sweat glands11. Adipose
tissue
Functions of Skin in brief Shields against water
Defends against germsPrevents bacteria & viruses from
entering the bodyMaintains homeostasisSweating/shivering
Provides sensory inputHeat, pressure, pain, touch…
Formation of vitamin D
Parts of Skina) Epidermis: outermost
layerb) Dermis: thick inner layerc) Subcutaneous layer
(hypodermis): layer of fat tissue or adipose tissue
Taking Care of SkinHealthy skin is the result of:
Taking shower regularlyUse of very mild, moisturizing soapUse of deodorant and/or antiperspirantUse of antibacterial soap to clean your face to prevent acneUse of sunscreen to prevent sunburn
Types of AcneWhitehead: a pore that is plugged with sebum(oil).Blackhead: a pore that is plugged with sebum and exposed to air.Pimple: a clogged pore that is filled with pus.
Common Skin ProblemsAcne (caused by bacteria)Cold sores (caused by herpes virus) small, painful blisters commonly called cold sores or fever blisters.Dandruff (dead skin cells of the scalp)Ingrown toenailsSunburn (UV rays)
Common Skin ProblemsRingworm (caused by fungus)Athlete’s foot (caused by fungus)Head lice (insects)
Skin ProblemsSunburn:
Sunburn is caused by ultraviolet rays.Ultraviolet rays come from sunlight.The lighter the skin is, the faster it burns.Ultraviolet rays make skin age and wrinkle faster.Sunburn can lead to skin cancer.
MOLES & Freckles Moles are very common spots on the skin. These are cells with high concentration of melanin.If you notice changes in a mole's color, height, size, or shape, you should have a dermatologist evaluate it.
Ultraviolet Rays
Your Hair
Made of dead cellsThe roots are in the dermis, located in small pockets called folliclesGets its color from melaninCan be wavy, curly, or straight
Your NailsDead cells that grow out of living tissueCuticle: a nonliving band of epidermis that grows around the nail
Mouth & TeethoTastingoDigestion: teeth crush and grind food, saliva moistens and chemically breaks it down
oSpeech
The ToothA. Crown: the
part you see B. Neck: part
between crown & root
C. Root: part of tooth inside the gum
Problems of the Teeth & MouthTooth decay or cavities are holes, or structural damage, in the teethGingivitis (gums become red and swollen and might bleed)Malocclusion (teeth in upper and lower jaws do not align properly)Halitosis (bad breath)
What causes tooth decay?
Poor diets (eating a lot of sugar)SmokingLack of good oral hygiene (not brushing/flossing)Irregular/not visiting the dentist
Taking Care of Your Teeth & Mouth1. Brush your teeth properly
after eating.2. Floss between your teeth.3. Reserve starchy foods & foods
high in sugar for mealtimes.4. Have regular dental checkups.