the tunica media
Vasoconstriction is normal contraction of smooth muscle in the artery wall.
Vasoconstriction!
Pulmonary artery vasoconstriction
Vasoconstriction!
Pulmonary artery vasoconstriction
the wall of an artery is usuallythicker that the wall of a vein.
Vasodilation
yes
right coronary artery
Yes
vasoconstriction
anyrysum