1. THE SKELETAL SYSTEM

2. dEFINITION
Skeletal System - A body system consisting of bones and the tissues connecting them.

3. Quick Bones facts Your bones are the supports of your entire body.
They allow you to stand and to move.
Your bones are made up of living tissues and cells.
Bones are hard on the outside, and spongy on the inside
There are 206 separate bones in the adult human body
The femur is the largest bone.
The smallest bones are located in the ear (stirrup).

4. Types of bones There are five different types of bones. Long Short
Flat
Irregular
Sesamoid

5. Long Bones that are much longer than wide.
Mostly in limbs (arms & legs)
Examples:
Femur
Ulna
Radius
Fibia

6. short Short and “cube” shaped. Found mostly in the wrist and ankles
Example:
Patella

7. flat Flat bones are thin and often curved in shape Examples: Skull
Sternum

8. Irregular Bones that do not fit into any of the previous categories
Examples:
Spine
Pelvis

9. sesamoid Bones that are surrounded by tendons.
Act to keep the tendon away from the joint.
Examples:
Patella
Pisiform (wrist)

23. joints Joints – places where one bone meets another.
There are four major different types of joints
Pivot
Hinge
Ball and Socket
Gliding

24. Pivot
Pivot joints consist of one bone rotating inside a ring created by the other bone.
This joint can move up and down and from side to side.
Example: Neck

25. Hinge This joint moves only in one direction like a door hinge.
Examples:
Elbow
Knee

26. Ball and Socket
The round end of one bone moves inside the other bone’s cup-shaped opening.
Can move in all directions
Examples:
Hip
Shoulder

27. Gliding Allow one bone to slide over another.
Move in a back and forth motion
Examples:
Wrist
Ankles

29. Bones of the core Skull Mandible Ribs Vertebrae Pelvis Scapula
Clavicle

30. Bones of the arms
Humerus
Radius
Ulna
Carpals
Metacarpals
Phalanges

31. Bones of the legs
Femur
Patella
Tarsals
Tibia
Fibula
Metatarsals

32. BROCCOLI
50 MG

33. CHEDDAR CHEESE
200 MG

34. YOGURT
370 MG

35. MILK 300 mg

36. TOFU
860 MG

37. Calcium Calcium is the major mineral found in our bones.
Calcium builds the hard structure of bones making them strong.
Teens needs roughly 1300 mg of calcium daily.

38. Bone health psa
For Monday, you will create a public service announcement on bone health.
You may either create a poster, write a paper, or create a video.
The specific guidelines for each choice are outlined in the rubric you will pick up after the quiz.