NBDE I Rsp S question

[mg777]

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NBDE I Exam 1989
Anyone have explanation for this question and answer

Biochem Phys
Q 50. Compared w/ systemic circulation under norml conditions, pulmonary circ is characterized by low pressure and....

[2] equal flow and low resistance

thanks

 

[lionelhutz]

NBDE I Exam 1989
Anyone have explanation for this question and answer

Biochem Phys
Q 50. Compared w/ systemic circulation under norml conditions, pulmonary circ is characterized by low pressure and....

[2] equal flow and low resistance

thanks

equal flow means that the heart and lungs must get the same amount of blood flow. This way, the heart never pumps any unoxygenated blood to the circ system just because it never went to the lungs.

Normally, the lung is a low-resistance and high compliance system. Low resistance has to do with the length the blood has to travel in the pulm system and the smaller cappillary beds.

 

[mg777]

equal flow means that the heart and lungs must get the same amount of blood flow. This way, the heart never pumps any unoxygenated blood to the circ system just because it never went to the lungs.

Normally, the lung is a low-resistance and high compliance system. Low resistance has to do with the length the blood has to travel in the pulm system and the smaller cappillary beds.

thanks for the info,