cappillaries
cappillaries
Capillaries.
the answer can be veins or ateries or venules or capillaries... sorry i really do not know the answer... hehehe... :)
veins, they have valves, the reason why they have them is because blood flow is slow
the type of blood vessels which flow contaminated blood to the heart are known as VEINS
Yes.
Blood vessels. Constriction of blood vessels increases blood pressure by reducing the space for blood flow, while dilation of blood vessels decreases blood pressure by increasing the space for blood flow.
so that the blood cannot flow the wrong way through the vessels
Blood vesseld will dilate to allow an increased blood flow to the working muscels and therefore providing more Oxygen.
Sympathetic vasoconstriction decreases blood flow by narrowing blood vessels, while sympathetic vasodilation increases blood flow by widening blood vessels.
The heart is a pump and move blood through the blood vessels.
by blood vessels