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Erstellt von J yadonknow
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Where do the pleural membranes of the lung meet?
What is the pressure within this closed pleural space w.r.t atmospheric pressure?
How does the Pulmonary Circulation run w.r.t the Systemic Circulation?
Describe Pulmonary Circulation
Describe Systemic Circulation
What is the pressure like in Pulmonary Circulation? What does this facilitate?
How do the Pulmonary arteries assist in Mx?
Show an equation that allows us to formulate Vascular Resistance
How does gravity influence ventilation and perfusion in humans?
How do alveoli differ depending on the region of the lung?
What is VA?
What is Q?
Why does regional VA:Q vary across the lung?
Why is regional mapping necessary?
How does regional VA:Q vary?
What occurs at 0?
What happens at infinity?
Why is local matching important?
What is modulated for VA:Q matching?
What effect does low PO2 have on blood flow?
How does vasoconstriction halt blood flow?
Why is blood flow restricted from accessing these areas of the lung?
How do fish maximise Gx?
How do bird lungs maximise Gx?
Show the efficacy of Gx of fish mammals and birds
Diagram of alveolus
Describe movement of air through an alveolus
How is transfer of O2 further influenced?
How fast is this transfer of O2?
What is Hb?
Describe Hb-O2 dissociation curve
What is meant by deoxygenated blood?
Describe the Bohr Shift
What other factors also cause an increase in O2 dissociation? (3)
Name 3 respiratory pigments and their characteristics
How does myoglobin function as an O2 reserve?
What is meant by P50 on an oxygen dissociation curve?
How does foetal Hb differ from maternal Hb?
Why is this important?
Draw a diagram showing O2 and CO2 exchange with the circulatory system and tissues of the body
carbonic anhydrase
How do CO2 levels alter pH of the cell?
Haldone effect