1. 3.1.11 Skeletal system We will learn about the skeletal system by taking notes and doing a mini lab We will learn about the skeletal system by taking notes and doing a mini lab TEK 7.12 B TEK 7.12 B Warm up: George needs to go 6 miles in 30 minutes. How fast must he travel in miles per hour? Warm up: George needs to go 6 miles in 30 minutes. How fast must he travel in miles per hour?

2. Skeletal System Notes Functions: 1.Provide a framework for shape 2.Support and movement 3.Protects vital organs 4.Stores minerals (calcium and phosphate) 5.Produces red blood cells within the marrow of long bones

3. Skeletal system

4. As a baby most of your 206 bones were made up of flexible As a baby most of your 206 bones were made up of flexible cartilage As you grow up your bones become or hardened by minerals such as As you grow up your bones become ossified or hardened by minerals such as calcium

5. As an adult is found at the ends of the bone and serves as a shock absorber for joint As an adult cartilage is found at the ends of the bone and serves as a shock absorber for joint

6. is where two bones meet A joint is where two bones meet Connective tissues that holds bones together are called Connective tissues that holds bones together are called ligaments

7. Do you have a spine? have a backbone Vertebrates have a backbone Invertebrate do NOT have a back bone

8. Inside or Outside? animals that have external skeletons Exoskeleton- animals that have external skeletons the skeleton is on the inside Endoskeleton- the skeleton is on the inside

9. Joint TypeLocation of jointType of movement FixedCraniumNone PivotBetween vertebrae Slight rotation Ball and socket Shoulder and hip wide range, circular motion HingeElbows, knees, fingers Back and forth GlidingWrist and ankle bones sliding

10. Joint Lab Different joints allow certain types of movements and different range of motion. Different joints allow certain types of movements and different range of motion. Go to each station and observe your partner perform the activity. Go to each station and observe your partner perform the activity. Discuss with your partner what type of joints were used and record it in your chart Discuss with your partner what type of joints were used and record it in your chart Activity NameType of joint(s)

11. Analyze it! 1.Which types of movement required more than one type of joint? 2.Why do most types of movement require many joints working together 3.Which type of movement require many joints working together? 4.Name two other movements that require the use of hinge joints 5.Which type of joint was not mentioned as a moveable joint in this activity?

12. Recall: the skeletal system is made up of bones, cartilage and ligaments Summary: Where can you find red blood cell production? (use complete sentence) OUT: Describe the 4 main functions of the skeletal system.