physio uw q3 - genius123

[ArchivalUser]

Which of the following wil be same in systemic and pulmonary circulations at peak of high intensity exercise?

A.Arterial resitance
B.mean arterial pressure
C.Diastolic arterial pressure
D.Arterial O2 content
E.Blood flow/mt

[ArchivalUser]

b..i guess

[ArchivalUser]

E.

[ArchivalUser]

B?

[ArchivalUser]

ANS=E
Rate of blood flow through pul circulation must equal systemic at all times.Arterial pressures and O2 content of pul and systemic systems r considerably dift both at rest and during exercise.

[ArchivalUser]

my logic is pretty weird...normally pulmonary pressure is less than sydtemic pressure..at hig peak exercise there is hypoxia ..whch causes constriction in pulm n dilation in systemic..so it will b same...heheheh...jus a willlllllldddddddd guess

[ArchivalUser]

actually CO for both of the systems r same .so bld flow /mt wil be same .
or u can say to keep that CO same bld flow has to b same per mt.
and its true that Pul circulation is low pressure high flow system.and low afterload pressures of rt vent (which is thinner than left )helps to keep pace with lt vent.

[ArchivalUser]

hello everyone

cardiac output= pulmonary blood flow!!!! so when it increase==>pulm will increase and so on!!!this is a golden rule

regards

[ArchivalUser]

so answer 'E' cos I thought so too.