The Lungs (AQA GCSE Biology Combined Science): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
Where are the lungs located in the body?
Where are the lungs located in the body?
In the thorax
What is the function of the trachea?
What is the function of the trachea?
Tube for air from mouth/nose to lungs
What do the intercostal muscles do?
What do the intercostal muscles do?
Ventilate the lungs
How many bronchi does the trachea divide into?
How many bronchi does the trachea divide into?
Two
Where does gas exchange occur in the lungs?
Where does gas exchange occur in the lungs?
Alveoli
During inhalation, which direction does the diaphragm move?
During inhalation, which direction does the diaphragm move?
Down
What happens to pressure inside the chest during inhalation?
What happens to pressure inside the chest during inhalation?
It decreases
How does oxygen move from the alveoli into the blood?
How does oxygen move from the alveoli into the blood?
Diffuses down its concentration gradient
Why do alveoli have thin walls?
Why do alveoli have thin walls?
Creates a short diffusion pathway
How is breathing rate calculated?
How is breathing rate calculated?
Breaths taken minutes