Bones Notes Mrs. Morris

Skeleton Supports the body Protects internal organs Skeleton & muscles enable the body to move

Bone & Cartilage

Bone is a living tissue

Bones produce blood cells

Bones store minerals used by the body

Cartilage is connective tissue which is part of the skeleton

Cartilage gives the skeleton flexibility

Cartilage is found in nose, between vertebrae & on the ends of bones

Cartilage prevents bones from rubbing together

In the human embryo most of the skeleton is cartilage

Most cartilage turns to bone (this change is called Ossification)

Joints

Joint = 2 or more bones that are connected together

A joint allows for motion

Bones are held together at the joints with ligaments

Ligaments can stretch but keep bones together

4 types of joints Pivot joint (neck) Ball & socket joints (shoulder & hip)- greatest range of motion Gliding joints (ankle, ribs, vertebrae) Hinge joints (elbow, fingers, knees)

The End……..