The Skeletal System

The Skeletal System Made up of all the BONES in the body!

The Skeletal System Function: Provides shape and support Protects internal organs Forms blood cells Stores calcium and phosphorous compounds for later use

Bones Made of layers of living tissue

Cartilage Smooth, slippery, thick layer of tissue Covers the ends of bones Flexible and acts as a shock absorber Makes movement easier by reducing friction

http://www.bmb.psu.edu/courses/bisci004a/bone/bone.htm

Joints Definition: Any place where two or more bones come together

Joints Kept far enough apart by a thin layer of cartilage so that they do not rub against each other as they move Bones are held in place at joints by a tough band of tissue called ligament

Types of Joints Immovable Moveable Skull Pelvis Pivot Ball & socket Hinge Gliding

http://www.nhfyouthworld.org/junior/mayjun/skeleton.jpg

Bones and Blood Red Blood cells are made in the long bones.