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

Understanding the Question

The question is asking about the physiological effect that results from the contraction of smooth muscle in the tunica media layer of an artery.

Related Concepts

1. Tunica Media: This is the middle layer of blood vessels, composed mostly of smooth muscle and elastic fibers.
2. Contraction of Smooth Muscle: When the smooth muscle in the tunica media contracts, it leads to a specific physiological response in the blood vessels.

Analysis

1. Vasoconstriction: The contraction of smooth muscle in the tunica media causes vasoconstriction, which is the narrowing of blood vessels. This results in reduced blood flow through the artery.

2. Impact on Blood Pressure: Vasoconstriction also increases peripheral resistance, which can lead to an increase in blood pressure.

Final Answer

The contraction of the smooth muscle in the tunica media of an artery causes vasoconstriction.