Relevant Questions:
1. Define tidal volume, dead space, and alveolar
ventilation. Why can't you scuba
dive with a 3 foot long
snorkel?
2. What layers must O2 and CO2
traverse in the process of gas exchange? What
forms the boundaries of
the pleural space?
3. Puncture the chest wall and the lung collapses.
Why? What forces are at work to
keep the lung inflated
in situ ?
4. What causes the lung to inflate and deflate?
What muscles are involved? What is
the primary nerve involved?
Classify this neuron in as much detail as possible.
5. Nerve gases (e.g., tabun or sarin ) are
often AChase inhibitors. How do they affect
respiration?
6. Where are the body's chemoreceptors?
What do they measure? Why are they
placed in these locations?
7. How does an i.v. injection of an acid cause
an increase in respiration?
8. Carbon monoxide poisoning affects respiration
only in its later stages. Explain.
9. Draw the oxygen - hemoglobin dissociation
curve. Label P50; define it and give the
units of measurement.
10. Stimulation of the vagus nerve temporarily
stops or slows respiration. Why?
11. Why must we have a respiratory pigment
to carry O2? How is the RBC adapted
to carry out
its functions?
12. In what three forms does the body carry
CO2?
13. What are the relationships between plasma
[CO2] and plasma pH? between
plasma [CO2]
and csf pH? between plasma [CO2] and rate of alveolar
ventilation?