Human Breathing (LC 2026) (Leaving Cert Biology): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What are two functions of the nasal cavity?
What are two functions of the nasal cavity?
Warms & moistens air
What structures in the nasal cavity filter air?
What structures in the nasal cavity filter air?
Tiny hairs (cilia)
How does air taken in through the mouth differ from air through the nose?
How does air taken in through the mouth differ from air through the nose?
Not warmed, moistened, or filtered
What is the function of the epiglottis?
What is the function of the epiglottis?
Prevents food entering airway
What is another name for the larynx?
What is another name for the larynx?
Voice box
What is the function of cartilage rings in the trachea?
What is the function of cartilage rings in the trachea?
Prevent airways from collapsing
What does mucous trap in the airways?
What does mucous trap in the airways?
Dust, bacteria & viruses
In which direction do cilia beat to move mucous?
In which direction do cilia beat to move mucous?
Upward to oesophagus
What are the walls of lower bronchioles made of?
What are the walls of lower bronchioles made of?
Muscle & elastic fibres only
Where does gaseous exchange primarily occur in the lungs?
Where does gaseous exchange primarily occur in the lungs?
Alveoli
What is the function of fluid in the pleural membranes?
What is the function of fluid in the pleural membranes?
Reduce friction during breathing
Why is the left lung slightly smaller than the right lung?
Why is the left lung slightly smaller than the right lung?
To accommodate the heart