When an Artery or Arteriole Is Damaged,its Smooth Muscle Layer
When an artery or arteriole is damaged,its smooth muscle layer contracts producing
A)tear in the vessel.
B)new vessel branching off the artery or arteriole.
C)a vascular spasm.
E)increased blood flow to the damaged vessel.
Elastic arteries function as
B)conduits to the tissues of the trunk only.
C)barriers to microcirculation.
In resting individuals,these vessels serve as a large blood reservoir from which blood can be quickly diverted to other vessels as needed.
A)Arteries and arterioles
B)Arterioles and capillaries
C)Venules and capillaries
D)Veins and venules
E)Aorta and veins
This type of blood vessel plays a key role in regulating blood flow into capillaries.