1. Skeletal System

2. Essential Question
How do the functions of the human body systems interact?
Today I will learn about the Skeletal System because it is responsible for protection, storage, and blood cell formation.

3. Activator
With your neighbor, answer the following questions: 1. What disorder does this individual have? 2. What type of complications might he encounter? 3. How do these complications affect his daily life?

4. Scoliosis:
Scoliosis. A person with scoliosis has a sideways curve to their spine. The curve is often S-shaped or C-shaped
Symptoms of scoliosis may include having:
Uneven shoulder blades with one being higher than the other
An uneven waist or hip
Leaning toward one side

5. Four Functions
Protection
Storage
Movement
Blood Cell Formation

6. Two Kinds of Bone Tissue
Compact Bone- no visible spaces; contains blood vessels
Spongy Bone- open spaces; provides strength and support

7. Marrow-Soft tissue Two Types:
Red Marrow-produces red and white blood cells
Yellow Marrow-stores fat

8. Essential Players of skeletal System
Cartilage- flexible tissue that is found in the ear and nose.
Ligament- strong elastic bands of connective tissue

9. Joint-a place where two or more bones meet
3 Types of Joints:
Gliding joint-ex. fingers
Ball-and-Socket-ex. shoulder
Hinge Joint- ex. knee

10. Skeletal System Injuries
Osteoporosis-a disease that results in a decrease in bone mineral density. This can increase the risk of bone fractures.
Torn ACL- anterior cruciate ligament that is located in the knee. This is usually a sports related injury.