Respiratory system - Test yourself
10 important questions on Respiratory system - Test yourself
Which is the odd one out?
trachea; oesophagus; nasal cavity; larynx; bronchi; bronchioles
How are dust particles that enter the respiratory system in the air expelled?
Arrange these statements in the right order to describe inspiration.
A. The air pressure in the air tight pleural cavities decreases B. The muscles between the ribs contract to move the ribs up and outC. Air is drawn down the trachea into the lungsD. The diaphragm contracts and domes up into the thoracic cavityE. The lungs expand to fill the space created
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Which of the statements below gives the best definition of gas exchange?
a) swapping oxygen for digested food in the gut capillaries.b) using energy to breathe.c) exchanging inhaled air for exhaled air in the lungs. d) exchanging oxygen for carbon dioxide in the lung alveoli.
Which of the following help the lungs to be such good gas exchange organs? (Choose at least 4).
- They are close to the heart.
- They are surrounded by pleural membranes.
- They have a large surface area.
- The air in the alveoli and blood in the capillaries are separated by a 2 very thin layers of cells.
- The blood flows more slowly in the lung capillaries as they are so narrow.
- The haemoglobin carries lots of oxygen.
- Breathing constantly changes the air in the alveoli.
- Active transport increases the rate at which the two gases move.
- They have a large surface area.
- The air in the alveoli and blood in the capillaries are separated by a 2 very thin layers of cells.
- The blood flows more slowly in the lung capillaries as they are so narrow.
- Breathing constantly changes the air in the alveoli.
Why does this process occur, when oxygen moves rom the alveoli into the blood
How does the structure of the alveoli make gas exchange efficient?
List the structures that air passes on its way from the nose to the alveoli:
What is the function of the mucus and cilia lining the respiratory passages?
How do movements of the ribs and diaphragm bring about inspiration? Circle the correct statement below.
a) The diaphragm domes up into the thorax and ribs move in and downb) The diaphragm flattens and ribs move up and outc) The diaphragm domes up into the thorax and the ribs move up and out.d) The diaphragm flattens and the ribs move in and down
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