Physiology - Carbon dioxide transport in the blood Flashcards
buffes, respiratory regulation and which other system defends H+ conc?
a. hepatic regulation
b. renal regulation
c. neurohormonal regulation
b.renal regulation
what are the 2 main buffers in the blood?
a. Hb and HCO3-
b. HCO3- and H2CO3
c. H2CO3 and Hb
c.H2CO3 and Hb
what is H2CO3 known as?
a. bicarbonate ion
b. carbonic acid
b.carbonic acid
what is normal blood pH?
a. 7.4
b. <7.35
c. >7.45
d. 7.5
a.7.4
what is acidosis blood pH?
a. 7.4
b. <7.35
c. >7.45
d. 7.5
b.<7.35
what is alkalosis blood pH?
a. 7.4
b. <7.35
c. >7.45
d. 7.5
c. >7.45
retention of which substance leads to respiratory acidosis?
a. bicarbonate ion
c. CO2
d. carbonic acid
d.carbonic acid
what does respiratory acidosis increase?
a. pco2
b. po2
c. phco3-
a.pco2
increased non carbonic acids leads to which type of acidosis/
a. metabolic
b. resp
a.metabolic
concentrations of which substances decrease in metabolic acidosis?
a. co2 and h2co3
b. co2 and hco3-
c. h2o and co2
b.co2 and hco3-
carbonic anhydrase converts between which 2 substances?
a. h2co3 and hco3- and H+
b. co2 and h2o
c. h2co3, co2 and h2o
c.h2co3, co2 and h2o
where is most of co2 in the blood found?
a. red blood cells
b. plasma
c. white blood cells
b. plasma
most co2 is found as?
a. HCO3-
b. CO2 disolved
c. carbamino compounds
a.HCO3-
the ability of deoxyHb in veins to carry more CO2 than oxy Hb in arteries causing a shift left in the graph for venous blood is known as
a. fick principle
b. starling law
c. haldane effect
d. bohr effect
c. haldane effect
cardiac dioxide output = arterio-venous difference x cardiac output is known as?
a. starling law
b. haladane effect
c. bohr effect
d. fick principle
d.fick principle
what is cardiac output measured in?
a.l/second
bl/min
c.ml/min
bl/min
what is co2 in the fick principle measured in?
a,l/min
b. l/s
c. ml/l
c.ml/l
what is carbon dioxide measured in for the fick principle?
a. ml/min
b. l/min
c. ml/l
a.ml/min
how many ways is oxygen carried?
a.2
b3
c.4
a.2
dissolved (3ml/l) or reacted with hae is the two ways which substance is carried
a. bicarbonate
b. carbon dioxide
c. oxygen
d. carbonic acid
c.oxygen
dissolved (30ml/l), reacted with globin and reacted with water are the 3 ways which substance is carried
a. bicarbonate
b. carbon dioxide
c. oxygen
d. carbonic acid
b.carbon dioxide
how much oxygen is there carried in total per litre of blood?
a. 200ml/l
b. 3ml/l
c. 30 ml/l
d. 500 ml/l
a.200ml/l
how much carbon dioxide is there carried in total per litre of blood?
a. 200ml/l
b. 3ml/l
c. 30 ml/l
d. 500 ml/l
d. 500 ml/l
on which gases gas content/pp graph is there a plateau ?
a. oxygen
b. carbonic acid
c. carbon dioxide
a.oxygen
