|1. What happens when you breathe from a bag containing 95% O2 and 5% CO2?
2. What are the reasons for a high haemoglobin level?
3. What is the mechanism for polycythaemia at altitude?
4. How long will it take for polycythaemia to occur?
5. In indigenous people living at high altitude, is this an adaptive or genetic response?
6. Where is haemoglobin (Hb) formed?
7. Where does the iron for Hb formation come from?
8. What are the mechanisms of iron absorption and transfer?
9. What is Hb broken down into?
10. What is the life span of a red blood cell?
11. Aside from acute blood loss, what are the causes of a reduced haemoglobin?
12. How could one differentiate between the different causes?
13. Where do vitamin B12/folate exert their effects?
14. What events occur to prepare the body for digestion when one sees a plate of food?
15. How is gastric acid secretion regulated?
16. Which cells secrete gastric acid?
17. What is the cellular mechanism for the secretion of stomach acid?
18. What are secretin, cholecystokinin (CCK) and gastrin secreted in response to?
19. What effects do secretin, CCK and gastrin have in regulating stomach acid secretion?
20. What is the role of histamine in gastric acid secretion?