1. RESPIRATORY SYSTEM # 4 Gas exchange Gas transport Respiratory control
17 November 2008
RESPIRATORY SYSTEM # 4
Gas exchange
Gas transport
Respiratory control
Lab this week: 3 Respiratory Case Studies on website.
Bring calculator and textbook to lab
Test # 3: Monday, 24 November

2. Only ¾ of riders exit at destination! Why?
Figure 13.20
Gas Transport in blood like hormones: free (dissolved) and bound (to hemoglobin)
Analogy of bus riders;
Only ¾ of riders exit at destination! Why?

3. Landmark numbers to memorize.
Table 13.07
Landmark numbers to memorize.

4. What happens in systemic capillaries?
Figure 13.27
What happens in systemic capillaries?
O2 bound to Hb does not contribute to partial pressure (no longer a dissolved gas!)

5. Table 13.08

6. Figure 13.26
Steep
Flat

7. Figure 13.29
At 40 Torr, more DPG, higher temperature, and greater acidity (all indicative of increased metabolism) shift dissociation curve down (Hb has a lower affinity for O2) and thus more O2 is unloaded into the tissues.

8. Figure 13.34

9. Figure 13.28
Oxygen exchange

10. Carbon dioxide transport
carbaminohemoglobin
Chloride
Shift
CA = carbonic anhydrase
Buffer
Carbon dioxide transport

11. Figure 13.31
Hb can bind
O2, CO2, and H+

12. Table 13.09

13. Cervical spinal cord injury
Figure 13.32
Negative feedback loop for
control of blood gases
Cervical spinal cord injury

14. Figure 13.22

15. Name the components of the negative feedback loop
Figure 13.40
Name the components of the negative feedback loop