11 Questions
What is the process of drawing air into the lungs called?
Inspiration
What is the normal tidal volume of an adult at rest?
500ml
What is the location of the respiratory centres that control breathing?
Medulla oblongata
What is the function of the Hering-Breuer reflex?
To prevent over inflation of the lungs
What is the normal respiratory rate of an adult?
12-20 breaths per minute
What is the process of exchanging oxygen for carbon dioxide in the lungs?
Ventilation
What is the term for a breathing rate above 20 breaths per minute in an adult?
Tachypnoea
What is the term for breathing that is too slow or shallow?
Hypoventilation
What is the result of hypoventilation in terms of carbon dioxide levels in the blood?
Carbon dioxide levels rise
What is the term for an irregular breathing rhythm?
Irregular rhythm
What is the consequence of hyperventilation in terms of carbon dioxide levels in the blood?
Carbon dioxide levels decrease
Understand the process of breathing, including inspiration, and the differences between normal and laboured breathing. Learn how the diaphragm and external intercostal muscles contract to draw air into the lungs.
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