Medicine A 6- year- old child, a known case of asthma (a respiratory disease), lives in north of Iraq (High altitude area), presented with sore throat, malaise and low-grade fever for one day duration. After clinical examination and blood tests, he was diagnosed as acute
bacterial tonsillitis.

i. Which area of the respiratory system is vascularized with the richest capillary network in the body? ii. State the function of alveolar type 2 cells.

‏ Manar Amar ‏:
i. What are the epithelium lining of blood vessels? ii. What other function(s) this type of epithelium could provide?

What is the only source of energy production for RBCs? Why it’s the only source?

What are the sources for mortality data?

As physiological adaptation to the reduced O2 tension in high altitude. how does the affinity of hemoglobin to O2 change? why?