5 Functions of the Skeletal System -

1.provides shape and support2.enables you to move3.protects your internal organs4.produces blood cells5.stores certain material until you need

them

Important Facts:**Adults have 206 Bones**Infants have 275 bones and skeleton made of mostly cartilage

Cartilage - is connective tissue that is more flexible than bone-located between bones at joints.

Ligament - strong connective tissue-connects bone to bone.

Types of Joints in the Body (use Diagram)

A. hinge joint (knee and elbow)B. pivot joint (neck)C. ball and socket (hip and shoulder)D.gliding joint (wrists and ankles)

2 Types of Joint Movement1.Movable Joint-most joints in the body are

movable. They allow the body to make a wide range of movement.

Joint Movement

• 1.Movable Joint-most joints in the body are movable. They allow the body to make a wide range of movement.

• 2. immovable joint-some joints in the body allow little or no movement. Example: skull

2 Types of Bones

1. Round Bones-movement and support

a. located in arms and legs

Bone types cont.

2. Flat Bones-they are involved in protecting vital organs

a. Located in the skull, ribs and scapula

• Taking care of bones

• 1. eat a healthy diet

• 2. exercise regularly

• 3. Eat foods high in calcium and phosphorus

• ***As people get older their bones lose minerals that they must contain. They develop osteoporosis in which the body’s bones become weak and brittle. Eat a diet high in calcium and phosphorus.