1. Respiratory system

Which arrow is pointing to the rib?

• A

• B

• C

• D

Which arrow is pointing to the trachea?

• A

• D

• F

• I

What is arrow 'I' pointing to?

• Left bronchiole

• Right bronchiole

• Left bronchus

• Right bronchus

In which order does air flow from the nasal cavity to the alveolus?

• Nasal cavity

  Bronchus

  Bronchiole

  Trachea

  Alveolus

• Nasal cavity

  Trachea

  Bronchiole

  Bronchus

  Alveolus

• Nasal cavity

  Trachea

  Bronchus

  Bronchiole

  Alveolus

• Nasal cavity

  Bronchus

  Trachea

  Bronchiole

  Alveolus

What is the name of the muscles between the ribs?

• Intermediate

• Interchange

• Intercostal

• Interim

What is arrow F pointing to?

• Alveolus

• Bronchus

• Bronchiole

• Trachea

Which arrow is pointing to the diaphragm?

• A

• C

• G

• H

Where in the lungs does oxygen diffuse into the blood?

• Trachea

• Bronchus

• Bronchus

• Alveolus

Why do we need a respiratory system?

• To obtain sufficient levels of oxygen and breath out waste carbon dioxide

• To obtain sufficient levels of carbon dioxide and breath out waste oxygen

• To obtain sufficient levels of nitrogen and breath out waste carbon dioxide

• To obtain sufficient levels of nitrogen and breathe out waste oxygen

What is the role of mucus and cilia in the lungs?

• To trap bits of food and sweep them up the oesophagus

• To trap particles and bacteria and sweep them down to the alveoli

• To trap bits of food and sweep them up to the back of the throat

• To trap particles and bacteria and sweep them up to the back of the throat