Question

which of the following factors through autoregulation will cause more blood to flow to a tissue
A. high tissue O2
B. low tissue O2
C .High tissue CO2
D.low tissue Co2
E.low (acidic)PH
F.high(basic)PH a

Answer 1

Autoregulation of blood flow is the intrinsic mechanism of flow of blood regulated by local factors to maintain a constant level of tissue perfusion.
The blood flow to an organ rises when the oxygen in tissues reduces. Increased amount of CO2 produced due to vstious metabolic processes also results in increased blood flow to the area.
Various cell activities produces metabolic acids and CO2 which reduces the ph. This also stimulates blood flow to remove these metabolites.
Answer : B. low tissue O2 ; C .High tissue CO2 ; E. low (acidic) ph