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)

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Lára Marie McIvor

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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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    Lára Marie McIvor

    Author: Lára Marie McIvor

    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.