Describe the process of breathing

The diaphragm contracts, moving downwards. The external intercostal muscles contract, and the internal intercostal muscles relax. Pressure in the chest cavity decreases, forcing air into the lungs. The diaphragm relaxes, moving back up. The external intercostal muscles relax and the internal intercostal muscles contract. Pressure in the chest cavity increases, forcing air out of the lungs.

AC
Answered by Ailin C. Biology tutor

2426 Views

See similar Biology GCSE tutors

Related Biology GCSE answers

All answers ▸

Name three common components of blood; as well as how they are removed from the plasma


What's the difference between a eukaryotic and prokaryotic cell?


Describe the difference between the function of a receptor and the function of an effector. Give examples.


What is the function of the cell nucleus?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences