Skeletal System

Skeletal System

• The human skeleton is an endoskeleton• There are 206 bones in the skeletal

system• 5 functions of the skeletal system

1. Supports the body and gives it shape2. Protects organs such as the heart and lungs3. Enables movement4. Store calcium and phosphorus5. Produce blood cells

JOINTS OF THE HUMAN BODY

• The place where two or more bones join together

• Ligaments are tough connective tissue that connect bone to bone and prevent the joint from moving in the wrong direction

• Tendons attach bone to muscle

• Joints can be movable or immovable

5 BASIC JOINTS

NameMovable or

ImmovableType of Movement

Example

Suture

(interlocking)Immovable

Bones of cranium

Pivot Joint MovableCranium to neck

Ball and Socket Joint

MovableShoulder Hips

Hinge Joint Movable Elbow Knee

Gliding Joint MovableAnkle Ribs Vertebrae

http://www.shockfamily.net/skeleton/JOINTS.HTML