extended response Flashcards
PCO2 in atmosphere =
this is because
0.23 mm Hg.
CO2 is a very small fraction of the atmosphere.
PCO2 in alveoli (lungs) =
this is because
40 mm Hg.
PCO2 increases because CO2 is being added to leftover air in the lungs loaded with CO2 from blood entering the pulmonary capillaries.
PCO2 in blood leaving pulmonary capillaries =
this is because
40 mm Hg.
PCO2 equilibrates to that within the lungs. It is less than the blood entering the pulmonary capillaires because some of the CO2 has exited into the lungs.
PCO2 in blood entering the systemic capillaries =
this is because
40 mm Hg.
PCO2 is the same as that leaving the pulmonary capillaries because no gas exchange occurs in the circulatory system except at the capillaries.
PCO2 in blood leaving the system capillaries =
this is because
46 mm Hg.
PCO2 increases because CO2 is added to the blood from the body tissues.
- PCO2 in blood entering the pulmonary capillaries =
this is because
46 mm Hg.
PCO2 is the same as that leaving the systemic capillaries because, again, no gas exchange occurs in the circulatory system except at the capillaries.
immunity step one
bacteria is eliminated
immunity step two
antigen presentation
immunity step three
T cell activation
immunity step four
T cell proliferation
immunity step five
armed and ready T cells
immunity step six
B cell recognition
immunity step seven
B and T cell communication
immunity step 8
B cell proliferation
immunity step 9
Plasma cells and memory B cells
