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IGCSEBiologyCambridge (CIE)Revision Notes11. Gas Exchange in HumansGas Exchange in HumansFunction of Cartilage in the Trachea

Function of Cartilage in the Trachea (Cambridge (CIE) IGCSE Biology)

Revision Note

Lára Marie McIvor

Written by: Lára Marie McIvor

Reviewed by: Lucy Kirkham

Function of Cartilage in the Trachea: Extended

Extended Tier Only

  • Rings of cartilage surround the trachea (and bronchi)

  • The function of the cartilage is to support the airways and keep them open during breathing

  • If they were not present then the sides could collapse inwards when the air pressure inside the tubes drops

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    Author
    Reviewer
    Lára Marie McIvor

    Author: Lára Marie McIvor

    Expertise: Biology 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

    Author: Lucy Kirkham

    Expertise: Head of STEM

    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.