Gaseous Exchange

Parts of the body

• Thorax is the upper part of the body containing the lungs protected by the ribcage.
• Thorax is sperated from the abdomen (lower body) by the diaphragm.

Breathing system

• Breathing system takes air n and out of the body so oxygen from the air can diffuse into the bloodstream and carbon dioxide can diffuse out of the bloodstream into the air.
• To make air move into the lungs the ribcage moves out and up and the…