vaso- refers to blood vessels
http://128.240.24.212/cgi-bin/omd?vaso-
http://www.answers.com/constrict
and
http://www.answers.com/dilate
Which do you think it is?
dizziness during hyperventilation is due to a decrease in cerebral blood flow. The decreased blood flow is caused by
a. vasodilation
b. decreased stroke volume
c.vasoconstriction
d. decreased respriation
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