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Unformatted text preview: t, then it has a large capacitance. Characteristics of the Vasculature Arteries have smooth muscle and large numbers of elastic
fibers in their walls
fibers in their walls. Allowing them to stretch and accommodate the blood being
ejected from the heart Conduit vessels relatively low and unchanging resistance
Conduit vessels - relatively low and unchanging resistance
to flow Capacitance – minimal changes Pressure in Arterial System – determined by volume
Arterioles also have smooth muscle, but less elastic fibers
compared to arteries. P = Volume / Compliance
Since the first vessel is stiff, compliance does not change with
the first vessel is stiff compliance does not change with
the change in volume. With the volume increase, pressure
has to increase. ( in numerator larger than in denominator) The volume of blood in the vessel.
How easily the vessel wall can be stretched. Diameters can be changed to regulate blood flow through
Arterioles are the resistance vessels. Capillaries do not contain smooth muscle. Dia...
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This document was uploaded on 01/13/2014.
- Winter '14