science

What are the 4 main functions of the skeleton?

1. Support: Holds the body upright. 2. Protection: Shields vital organs like the heart and brain. 3. Movement: Provides points for muscle attachment. 4. Blood production: Makes red and white blood cells in bone marrow.

Which bone protects the brain?

The skull (or cranium).

What protects the heart and lungs?

The rib cage.

What part of the bone is responsible for making blood cells?

The bone marrow.

What is a joint?

A place where 2 or more bones meet.

What is the function of ligaments?

They connect bone to bone to hold joints together and provide stability.

What is the function of tendons?

They connect muscle to bone to transmit the force needed for movement.

What is cartilage?

A smooth, tough tissue that covers the ends of bones to reduce friction and act as a shock absorber.

What are the 2 main types of synovial joints studied in Year 7?

1. Hinge joints: Allow movement back and forth in one plane (e.g., knee and elbow). 2. Ball and socket joints: Allow movement in all directions (e.g., hip and shoulder).

What is the function of synovial fluid?

It acts as a lubricant to reduce friction in the joint during movement.