Which statement is CORRECT concerning capillaries? O The walls of capillaries contain smooth muscle. O The only site of nutrient, gas, and waste exchange. O Networks of capillaries are called capillary nets. O Pre-capillary sphincters contract to increase capillary flow. O Almost all capillaries are open at the same time.
Which statement is CORRECT concerning capillaries? O The walls of capillaries contain smooth muscle. O The only site of nutrient, gas, and waste exchange. O Networks of capillaries are called capillary nets. O Pre-capillary sphincters contract to increase capillary flow. O Almost all capillaries are open at the same time.
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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Transcribed Image Text:Which statement is CORRECT concerning capillaries?
O The walls of capillaries contain smooth muscle.
O The only site of nutrient, gas, and waste exchange.
O Networks of capillaries are called capillary nets.
O Pre-capillary sphincters contract to increase capillary flow.
O Almost all capillaries are open at the same time.
Transcribed Image Text:A newborn was delivered through normal spontaneous vaginal delivery (NSVD). After the umbilical cord was cut, the number of arteries
and vein was checked. You are aware that umbilical vein carries
O oxygen and nutrients from the fetus to the placenta
O oxygen and nutrients from the placenta to the fetus
O metabolic wastes and carbon dioxide from the fetus to the placenta
O blood from the navel into the inferior vena cava
O metabolic wastes and carbon dioxide from the placenta to the fetus
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