Ribcage

Summary: Gas exchange takes place inside your lungs. Lungs are made of soft tissue that expands when you breathe in – this allows you to take in lots of oxygen. Your lungs are protected by your ribs. These are hard and strong bones that make up your ribcage. Tags: science student-book-7 biology Created: 2026-05-21 Last Updated: 2026-05-21

Ribcage

Gas exchange takes place inside your lungs. Lungs are made of soft tissue that expands when you breathe in – this allows you to take in lots of oxygen. Your lungs are protected by your ribs. These are hard and strong bones that make up your ribcage.

Source

This concept is from the [Science Student Book 7](Science Student Book 7/Biology/Body Systems/2.6 Breathing - gas exchange.md), Biology section.