1. Team Sports How many people play a team sport? How do team sports work? What do you have to do in order to be successful as a team?

2. How is Your Body a Team? All of the parts of your body must work together to keep you alive If one part does not function properly, then your body does not work as well Let’s take a look at the players…

3. Human Body Systems Human Body Systems Chapter 35.1

4. The Players The levels of organization in a multicellular organism from smallest to largest are: –cell→ tissue → organ → organ system

6. Now let’s take a closer look at the players… 1.Cell 2.Tissue 3.Organ 4.Organ system

7. Cell Basic unit of structure and function in an organism Specialized cells –are uniquely suited to perform a particular function

8. Tissue A group of cells that perform a single function Four basic types of tissues: –Muscle: allows body to move –Epithelial: glands and tissues that cover interior and exterior body surfaces –Connective: provides support for the body –Nervous: transmits nerve impulses

10. What is the purpose of each of these items? Electrical WirePlastic WrapPackaging Tape

11. What type of tissue is represented by each item? Electrical WirePlastic WrapPackaging Tape epithelial nervousconnective

12. Organ / Organ Systems Organ -group of different types of tissues that work together to perform a single function Organ systems -group of organs that perform closely related functions

13. Questions Can you name some organs found in the human body? What are some of the functions of these organs? Can you name the 11 organ systems found in the human body? What are the main functions of each organ system?

14. The Organ Systems 11 different organ systems are organized in the body 7. Digestive 8. Excretory 9. Endocrine 10. Reproductive 11. Immune 1. Nervous 2. Integumentary 3. Skeletal 4. Muscular 5. Circulatory 6. Respiratory

15. Nervous SystemIntegumentary SystemSkeletal SystemMuscular SystemCirculatory System Section 35-1 Figure 35-2 Human Organ Systems Part I

16. Respiratory SystemDigestive SystemExcretory System Endocrine SystemReproductive SystemLymphatic/Immune Systems Section 35-1 Figure 35-2 Human Organ Systems Part 2

17. Room temperature increases Thermostat senses temperature change and switches on heating system Thermostat senses temperature change and switches off heating system Room temperature decreases Examples of Feedback Inhibition