Which structures allow blood to pass through a capillary bed even when the precapillary sphincters are closed? O arterioles and small veins O continuous capillaries O blood can't pass through a capillary bed unless the precapillary sphincters are open O metarterioles

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Which structures allow blood to pass through a capillary bed even when the precapillary sphincters are closed?
O arterioles and small veins
continuous capillaries
O blood can't pass through a capillary bed unless the precapillary sphincters are open
O metarterioles
O muscular arteries
Transcribed Image Text:Which structures allow blood to pass through a capillary bed even when the precapillary sphincters are closed? O arterioles and small veins continuous capillaries O blood can't pass through a capillary bed unless the precapillary sphincters are open O metarterioles O muscular arteries
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