class 11 biology skeletal system

1. Skeletal System
Mr. Oles

2. • Focus on these bones
• Cranium, clavicle, scapula,
sternum, ribs, pelvis, femur,
patella, vertebra, humerus, ulna,
tibia, fibula, radius, carpals,
tarsals

3. 5 Functions of the Skeletal System
• WHAT ARE THEY?!!!

4. 5 Functions Are?!
• Provide Shape and support
• Allows Movement
• Protects Tissues and Organs
• Stores Certain Materials
• Produces Blood Cells

5. Development of Bone
• Most bones are formed from
cartilage
A. Cartilage acts as padding
between bones

7. Structure of Bones
• Inside the bones is a hollow space
full of a material called marrow
–Marrow contains fat and produces
blood cells

8. Skeletal Joints
The four types of joints are pivot,
Hinge, ball-and-socket, and gliding

9. Skeletal Joints
• Pivot joints allow rotation of one
bone around another

10. Skeletal Joints
• Ball-and-Socket Joints provide for
circular motion

11. Skeletal Joints
• Hinge Joints allow for forward and
backward movements but little side
to side

12. Skeletal Joints
• Gliding Joints allow one bone to slide over
another

13. Connectors?!
• Ligaments connect bones to bones
and restrict unhealthy movement
• Tendons connect muscles to bones

15. OHH NO!!!
• Torn ACL!
• What Happens!

16. • 1: What bone or bones
is/are broken?
2: For this bone what is its
main function (of the five
main purposes of the
skeletal system)?
• 3: Describe the problem
with the bone (fracture,
dislocation)