IGCSEBiologyCambridge (CIE)Revision Notes11. Gas Exchange in HumansGas Exchange in HumansThe Breathing System

The Breathing System (Cambridge (CIE) IGCSE Biology): Revision Note

Exam code: 0610 & 0970

Lára Marie McIvor

Written by: Lára Marie McIvor

Reviewed by: Lucy Kirkham

Updated on

Cambridge (CIE) BiologyCambridge (CIE) Combined Science: Biology

The Breathing System

Structures in the human breathing system, IGCSE & GCSE Biology revision notes
Structures in the human breathing system
Diagram of the ribcage showing external and internal intercostal muscles, sternum, and ribs. Muscles are labelled in red and blue; bones in beige.
The internal and external intercostal muscles
The Breathing System table, IGCSE & GCSE Biology revision notes

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Author
Reviewer
Lára Marie McIvor

Author: Lára Marie McIvor

Expertise: Biology, Psychology & Sociology Subject Lead

Lára graduated from Oxford University in Biological Sciences and has now been a science tutor working in the UK for several years. Lára has a particular interest in the area of infectious disease and epidemiology, and enjoys creating original educational materials that develop confidence and facilitate learning.

Lucy Kirkham

Reviewer: Lucy Kirkham

Expertise: Head of Content Creation

Lucy has been a passionate Maths teacher for over 12 years, teaching maths across the UK and abroad helping to engage, interest and develop confidence in the subject at all levels.Working as a Head of Department and then Director of Maths, Lucy has advised schools and academy trusts in both Scotland and the East Midlands, where her role was to support and coach teachers to improve Maths teaching for all.