Relaxation of the smooth muscles in the tunica media of an artery causes its diameter to increase. This is called  ______.Multiple choice question.plaque formationvasodilationanastomosisvasoconstriction

Fill in the Blank QuestionFill in the blank question.Contraction of the smooth muscle in the tunica media of an artery causes .

During vasoconstriction, smooth muscle in an artery contracts. The smooth muscle of an artery is located in the ______.Multiple choice question.tunica externatunica internatunica media

The tunica media of a blood vessel is mostly __________ muscle.Group of answer choicescardiacfibrousskeletalsmooth

The small clumps of muscle to which the chordae tendineae are attached are called the ______ muscles.Multiple choice question.auricularcuspidpapillarycoronary

Which layer of a blood vessel wall is the thickest and contains smooth muscle?Multiple choice question.tunica mediatunica externatunica interna