STARTER #3 1.Label the cavities to the right a. b. c. d. 2.What type of tissue lines organs and cavities? 3. What type of tissue is this?

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Presentation transcript:

STARTER #3 1.Label the cavities to the right a. b. c. d. 2.What type of tissue lines organs and cavities? 3. What type of tissue is this?

INTEGUMENTARY SYSTEM PP

PARTS OF INTEGUMENTARY Skin Nails Hair

SKIN FUNCTION Barrier against mechanical and chemical injury Protection of microbial invasion Prevention of dehydration Regulation of body temperature Sensory Vitamin (D) synthesis

SKIN LAYERS Epidermis- outermost layer of skin Contain melanocytes make melanin (gives pigment and protection from UV light)

SKIN LAYERS Dermis-inner layer of skin composed of blood vessels, nerves, hair follicles, glands

SKIN LAYERS Glands Oil glands attached to hair follicles Secrete sebum (oils) Sweat glands regulate body temperature Subcutaneous: fat cells (insulation)

SKIN CANCER Most common in the U.S. Can affect skin cells or melanocytes (worst type) People of light skin tone, blue eyes, and red hair are most at risk

NAILS Protect ends of toes and fingers Made of keratin

HAIR Protect and insulates the body Produced by hair follicles Made of keratin