1. 3/2/2015 Starter Which of these organs helps to maintain balance in the body and why? 1. Lung 3. Tongue 2.Kidney 4. Heart Practice: Notes Glue here when done 185 186 Integumentary System Notes Application/ Connection/ Exit : Skin labeling and information Activity. Turn in when complete Integumentary System Notes 3/2/2015

2. March 2, 2015 AGENDA Objective 7.12 B Identify the main functions of the systems of the human organism, including the circulatory, respiratory, skeletal, muscular, digestive, excretory, reproductive, integumentary, nervous, and endocrine systems by completing a circulatory and Respiratory system activity 1. Starter 2. 2. notes 3. 3. Ws

3. DateLecture/ Activity/ Lab Page 2/17 Digestive System Notes and Ws 169-170 2/18 Exretory System Notes and Ws 171-172 2/19 Digestive System Corp Letter 173-174 2/20 Digestive System Lab 175-176 2/23 Respiratory System Notes and Ws 177-178 2/24 Respiratory System Activity 179-180 2/25-26 Circulatory System notes and Foldable 181-182 2/27 Circulatory and Respiratory System Lab 183-184 3/2 Integumentary System Ws and Notes 185-186

4. The Integumentary System

5. 1. INTEGUMENTARY SYSTEM A LARGE Word for the LARGEST Organ in the Human Body… SKIN.

6. 2. Five functions of the skin A. It forms a barrier to help prevent harmful substances from entering the body.  Ex. the skin protects your insides from chlorine in a pool. B. Regulates the body temperature in spite of external changes.

7. 2. 5 functions of the skin C. Helps eliminate mineral waste, through perspiration. D. Gathers information about the environment. (Nerves) E. Produces vitamin D in some skin cells in presence of sunlight. (helps the body absorb calcium)

8. 3. Layers of Skin Epidermis Dermis Blood vessels Nerve Hair Follicle Fat Sweat gland Oil gland Pore Hair

9. 4. Epidermis a. Outermost layer b. Thinnest layer on most of body c. Contains no nerve or blood cells d. Dead cells remain on the surface for about 2 weeks e. Dead cells form a protective barrier for the living cells under them.

10. 5. Dermis a. Contains fat b. Contains blood vessels, nerves, sweat glands, hair and oil glands. c. Openings to surface for sweat and oil called pores. d. Openings for hair growth called follicles. e. Melanin is a pigment that determines skin color.

11. 6. Caring for skin: a. eat properly b. drink water c. limit sun exposure d. keep clean!

12. 7. Hair and toe nails are also part of the integumentary system.

13. Systems that interact with the integumentary system Immune System The oil and sweat glands on your skin secrete fluids that decrease the pH on the surface of your skin and kill microorganisms. There are even enzymes in your sweat that can digest bacteria.

14. Systems that interact with the integumentary system Circulatory System The integumentary system also works closely with the circulatory system and the surface capillaries through your body. Capillaries near the surface of the skin open when your body needs to cool off and close when you need to conserve heat

15. Systems that interact with the integumentary system Nervous System We can't leave out the important sense of touch. Your nervous system depends on neurons embedded in your skin to sense the outside world.

16. 3/2/2015 Starter Which of these organs helps to maintain balance in the body and why? 1. Lung 3. Tongue 2.Kidney 4. Heart Practice: Notes Glue here when done 185 186 Integumentary System Notes Application/ Connection/ Exit : Skin labeling and information Activity. Turn in when complete Integumentary System Notes 3/2/2015