1.  Do Now: Pick up guided reading, DUE FRIDAY PICK UP LAB BOOKS and FLOW CHART FOR PART 2 Answer the questions using the introduction

3. Move Move Reproduce Reproduce Sensitive Sensitive Nutrition Nutrition Excrete Respire Respire Grow Grow

4. How does a human carry out all of these functions?

6. TISSUE ORGAN CELL ORGANELLE ORGAN SYSTEM ORGANISM

9.  Muscle fatigue – State lab, design your own experiment  Research a disease - create a brochure!  Day in the planetarium – voyage through the human body!  Virtual surgery – c-section, braces, in grown toes!  Why do we get pimples? How do bones break? What is asthma? How bad is smoking for you?

10. 1. As well as having unique fingerprints, humans also have unique tongue prints 2. The smallest bone found in the human body is located in the middle ear. The staples (or stirrup) bone is only 2.8 millimetres long. 3. The brain uses over a quarter of the oxygen used by the human body 4. About 32 million bacteria call every inch of your skin home 5. Three hundred million cells die in the human body every minute 6. The width of your armspan stretched out is the length of your whole body

12. 7. Your foot is the same length as the distance between your elbow and wrist! 8. Every day the average person loses 60-100 strands of hair The lifespan of a human hair is 3 to 7 years on average. 9. The largest internal organ is the small intestine The skin is the largest organ! 10. The human body is estimated to have 60,000 miles of blood vessels.

14. 11. Babies are born with 300 bones, but by adulthood the number is reduced to 206 12. It takes 17 muscles to smile and 43 to frown 13. Nails and hair DO NOT continue to grow after death 14. Your eyes are always the same size from birth but your nose and ears never stop growing 15. Over 90% of diseases are caused or complicated by stress

17.  Your left lung is smaller than your right lung to make room for your heart.  You are about 1 cm taller in the morning than in the evening  Your brain is more active at night  Your foot has over 50,000 sweat glands.

18.  Trillions of cells (50-75 trillion)  4 types of tissues  11 Different systems to carry out life functions Can you name them all?

19.  Controls the body by sending chemical messages  Responds to stimulus

20.  RESPIRATION  Why do we need oxygen?  What gas do we need to excrete?

21.  Breaks large food molecules into pieces small enough to DIFFUSE through cell membranes

22.  Helps move nutrients and wastes around the body  Think of it as a highway or transportation network

23.  Moves and supports/protects our bones

24.  Structure and protection of internal organs

25.  Largest organ!  Skin, hair, nails, sweat glands  Protection, temperature regulation

26.  Responsible for procreating to avoid extinction

27.  Immunity  Detects, filters, and removes harmful bacteria and other foreign invaders

28.  Secretes chemical messages (hormones) into blood stream

29.  Removes waste from body  Sweat, urine

31. Necessary Life Functions Movement Locomotion Movement of substances Responsiveness Ability to sense changes and react Digestion Break-down and delivery of nutrients

32. Metabolism – chemical reactions within the body Production of energy Making body structures Excretion Elimination of waste from metabolic reactions Necessary Life Functions

33. Reproduction Production of future generation Growth Increasing of cell size and number Necessary Life Functions

34. Survival Needs Nutrients Chemicals for energy and cell building Includes carbohydrates, proteins, lipids, vitamins, and minerals Oxygen Required for chemical reactions

35. Water 60–80% of body weight Provides for metabolic reaction Stable body temperature Atmospheric pressure must be appropriate Survival Needs

36. Homeostasis Maintenance of a stable internal environment = a dynamic state of equilibrium Homeostasis must be maintained for normal body functioning and to sustain life Homeostatic imbalance – a disturbance in homeostasis resulting in disease

37. Maintaining Homeostasis The body communicates through neural and hormonal control systems Receptor Responds to changes in the environment (stimuli) Sends information to control center

38. Maintaining Homeostasis Control center Determines set point Analyzes information Determines appropriate response Effector Provides a means for response to the stimulus

39. Feedback Mechanisms Negative feedback Includes most homeostatic control mechanisms Shuts off the original stimulus, or reduces its intensity Works like a household thermostat

40.  Positive Feedback Increases the original stimulus to push the variable farther In the body this occurs only in blood clotting and child birth