1. TOPIC: Locomotive Systems
Aim: Explain the parts and functions of the skeletal system.
Do Now- Explain advantages of locomotion.
HW: Read pages Write recall notes about what joints are and the different types of joints. Due tomorrow!

2. The smallest is the stirrup bone in the ear which can measure 1/10 of an inch.

3. Your face has 14 bones.

4. One fourth of your bones are located in your feet.

5. True or False: Children often bend their bones rather than break them.
TRUE! Their bones are more pliable, and tend to bend more without breaking.

7. Connective tissue that connects bone to bone
Connective tissue that connects muscle to bone
1. Ligaments
2. Tendons

9. Flexible connective tissue
3. Cartilage
Flexible connective tissue

10. Found:
at ends of bones for cushioning and protection

11. in bw vertebrae

13. Give shape to certain body parts
(ears, nose)

14. Maindex
Months before birth, the skeleton is made of cartilage. Gradually the cartilage breaks down and is replaced by bone. Cartilage is replaced slowly by bone as solid tissue grows outward. Over time, the bone reshapes to include blood vessels, nerves, and marrow. Bone-forming cells deposit the minerals calcium and phosphorous in bones, making the bone tissue hard.

15. Skeleton of newborn made mostly of cartilage

17. 4. Bones

18. Cranium = Skull

20. Clavicle = collar bone
Rib cage (protect)

22. Sternum = breast bone

23. Vertebrae = backbones

26. Scoliosis

27. Humerus = upper arm bone
Ulna & radius = lower arm

32. Pelvis = hips

34. Femur = thigh bone (longest & strongest)

35. Patella = knee cap

37. Carpals = wrist bones
Metacarpals = hand bones

38. Phalanges = fingers & toes

43. Did You Know? Humans and giraffes have the same number of bones
in their necks? A Giraffe’s
neck vertebrae are just much, much longer!

44. The only bone not broken so far during any ski accident is one located
in your inner ear.

45. If you break your wrist as an adult it will take you 8 weeks to heal.
A five year old child who
breaks their wrist only takes 3
weeks to heal.

46. Let’s summarize…
Identify structures that make up your skeletal system.
Describe the difference between tendons and ligaments.
Explain the function of cartilage.
Where is cartilage found?