BRAIN SCAN

1. BRAIN SCAN • Brain scan is an interactive quiz for use as a revision/ learning reinforcement tool that accompanies the theory package. • To answer a question click the mouse on the gold diamond shapes. • To return to the questions from an answer slide click anywhere. • To progress click on ‘next question’.

2. BRAIN SCAN THE RESPIRATORY SYSTEM NEXT QUESTION What are the lungs? 2 thin walled elastic sacs that lie in our thoracic bridge. 2 thickly muscled elastic sacs that lie in our chest 2 thin walled bags of air in our chest. 2 thin walled elastic sacs that lie in our chest.

3. BRAIN SCAN THE RESPIRATORY SYSTEM NEXT QUESTION What is the diaphragm? A sheet of muscle below the lungs that’s important for breathing. A sheet of muscle. A muscle below the lungs that’s important for breathing. A sheet of muscle below the sternum important for breathing.

4. BRAIN SCAN THE RESPIRATORY SYSTEM NEXT QUESTION What is the epiglottis? A flap at the top of the throat to enable food to enter the windpipe. A flap at the back of the nose to stop food entering the windpipe. A flap at the back of the throat to stop food entering the windpipe. A flap at the back of the throat to stop food dissolving.

5. BRAIN SCAN THE RESPIRATORY SYSTEM NEXT QUESTION What does the palate do? Separates the nasal cavity from the oral cavity. Separates the nasal strip from the oral cavity. Separates the nose cavity from the tongue. Separates the oral cavity from the oral cavity.

6. BRAIN SCAN THE RESPIRATORY SYSTEM NEXT QUESTION What are found at the ends of bronchioles? Veins. Arteries. The diaphragm. Alveoli.

7. BRAIN SCAN THE RESPIRATORY SYSTEM NEXT QUESTION What are alveoli? Thick walled, spongy sacs that fill & empty with air. Thin walled, spongy sacs that fill & empty with air. Thick walled, spongy sacs that fill & empty with blood. Thin walled, spongy sacs that fill & empty with blood.

8. BRAIN SCAN THE RESPIRATORY SYSTEM NEXT QUESTION What is another name for external respiration? Pulmonary arteries. Cell respiration. Oxygen respiration. Pulmonary respiration.

9. BRAIN SCAN THE RESPIRATORY SYSTEM NEXT QUESTION What does haemoglobin do? Carries oxygen through the veins. Carries carbon dioxide through the veins. Carries carbon dioxide through the arteries. Carries oxygen through the arteries.

10. BRAIN SCAN THE RESPIRATORY SYSTEM NEXT QUESTION How does oxygen get to the muscles? Passes through thin artery walls. Passes through thick capillary walls. Passes through thin capillary walls. Passes through thin venule walls.

11. BRAIN SCAN THE RESPIRATORY SYSTEM NEXT QUESTION What is tidal volume? The amount of air breathed in & out in one minute. The amount of air breathed in, in one breath. The amount of air breathed in, in one minute. The amount of air breathed in & out in one breath.

12. BRAIN SCAN THE RESPIRATORY SYSTEM NEXT QUESTION What is minute volume? Total amount of air breathed in & out in one minute. The amount of air breathed in, in one breath. The amount of air breathed in & out in one breath. The amount of air breathed in, in one minute.

13. BRAIN SCAN THE RESPIRATORY SYSTEM NEXT QUESTION When we exercise we need more oxygen & have to remove more carbon dioxide. How do we do this? Increase breathing rate, blood flow through lungs & O2 taken up by the body Increase breathing rate & depth, blood flow through lungs & CO2 taken up by the body. Increase breathing rate & depth, blood flow through lungs & O2 taken up by the body. Increase breathing rate & depth, blood flow through body.

14. BRAIN SCAN THE RESPIRATORY SYSTEM NEXT QUESTION What does TLC stand for? Typical Lung Capacity. Tender Loving Care. Total Lung Capacity. Total Lung Capitalisation.

15. BRAIN SCAN THE RESPIRATORY SYSTEM NEXT QUESTION What happens when blood has been freshly oxygenated? Travels to the heart to be pumped out Travels to the stomach to be used for energy. Pumped through the lungs to get rid of waste. Travels to the lungs to be pumped out.

16. BRAIN SCAN THE RESPIRATORY SYSTEM NEXT QUESTION What happens to lung size during inspiration? Decreases Gets smaller, then bigger Increases No change

17. BRAIN SCAN THE RESPIRATORY SYSTEM NEXT QUESTION How does oxygen get into the blood at the lungs? Gaseous ingestion. Gaseous exchange. Gaseous exemption. Gaseous infusion

18. BRAIN SCAN THE RESPIRATORY SYSTEM NEXT QUESTION What is a person’s average breathing rate? 15 per minute. 21 per minute. 10 per minute. 16 per minute.

19. BRAIN SCAN THE RESPIRATORY SYSTEM NEXT QUESTION How do you work out total lung capacity? Vital capacity + minute volume. Minute volume + tidal volume. Vital capacity + residual volume. Tidal volume + residual volume.

20. BRAIN SCAN THE RESPIRATORY SYSTEM NEXT QUESTION How does high altitude affect oxygen uptake? There is a greater amount of nitrogen in the air Oxygen content in the air is less. Oxygen content in the air is greater. Carbon dioxide content increases.

21. EXTENSION QUESTIONS BRAIN SCAN EXAM QUESTIONS THE RESPIRATORY SYSTEM What will happen to our tidal & minute volumes when we exercise? END QUIZ Slow down Increase in volume Decrease in volume. Become irregular.

22. CORRECT!!!

23. INCORRECT!

24. EXTENSION QUESTIONS • What is the pleural membrane & what is its job? • What is another name for the trachea? • We breathe about 16 times a minute & use about 0.5 litres of oxygen per breath. How might this change during high intensity exercise? • What is pulmonary respiration? ANSWERS

25. EXAM QUESTIONS • What is meant by external respiration? (2 marks) • Give 1 reason why breathing rate increases during physical activity. (1 mark) • Give 2 reasons why the body needs oxygen. (2 marks) • Give 3 changes occurring in the respiratory system as a result of exercise. (3 marks) • What is an oxygen debt & when is it likely to occur? (3 marks) • What is vital capacity? (1 mark) • What is the effect of vital capacity on performance? (3 marks) • What is VO2 maximum & why is it important in sport & physical activity? (3 marks) • Name 3 parts of the respiratory system. (3 marks) ANSWERS

26. EXTENSION ANSWERS • They are double skins which are slippery & keep the lungs moist. They lubricate the lung exterior so the membranes can slide against each other as the lungs expand & contract to reduce friction. • The windpipe. • We may breathe up to 50 times a minute & up to 2.5 litres of oxygen per breath. • Pulmonary respiration is where oxygen moves in & out of the lungs, carbon dioxide is breathed out & oxygen is moved into the blood stream.

27. EXAM ANSWERS • Breathing oxygen into the lungs & removing carbon dioxide by breathing out. • Increased demand for oxygen by the working muscles. • To live, to break down food into energy for work. • Increased tidal volume, increased minute volume, increased depth of breathing & increased number of breaths. • When the body is not getting enough oxygen to work so it works without oxygen until it is available. This will occur during the first 3 minutes of exercise & as we reach maximal heart rate. The oxygen debt is the extra oxygen we have to breathe in on top of what we would normally to bring the body back to normal equilibrium. • The total amount of oxygen a person can accommodate. • A high vital capacity means good aerobic fitness whereas a low one means poor stamina as we would get out of breath quickly & maximum heart rate would be reached more quickly as oxygen demand can’t be met. • Vo2 maximum is also called vital capacity. A high VO2 maximum means good aerobic fitness whereas a low one means poor stamina as we would get out of breath quickly & maximum heart rate would be reached more quickly as oxygen demand can’t be met. • Lungs, bronchus, bronchioles, alveoli, diaphragm, trachea.