Blood flow rate can be expressed as , where
is the flow rate and
are the intial and final pressure exerted against the blood vessel
s walls and
is the resistance created by the size of the vessel.
a.
\Write an solve an equation of to determine the resistance of the blood vessel for an initial pressure of millileters of mercury,a final pressure of
millimeters of mercury and a flow rate of
.
Here, ,
and
.
Find the resistance of the blood vessel:
\ (Orginal equation)
(Substitute
,
and
)
(Multiply each side by
)
(Cancel common terms)
(Divide each side by
)
(Simplify)
Therefore, the expression to find the resistance is and the resistance is
.
\
b.
\Find Row 1 :
\The resistance is .
Find Row 2 :
\Find flow rate.
\.
Here ,
and
.
(Orginal equation)
(Substitute
,
and
)
(Simplify)
Find Row 3 :
\Find the intial pressure :
Here,,
and
.
(Orginal equation)
(Substitute
,
and
)
(Multiply each side by
)
(Add
to each side)
(Apply additive inverse property :
)
Find Row 4 :
\Find the final pressure :
Here ,
and
.
(Orginal equation)
(Substitute
,
and
)
(Multiply reciprocal)
(Subtract
from each side)
(Apply additive inverse property :
)
Completed table :
\Initial pressure ![]() | \
Final pressure ![]() | \
Resistance ![]() | \
Flow rate ![]() | \
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a.
\An expression to find the resistance is and the resistance is
.
b.
\Tablular form :
\Initial pressure ![]() | \
Finial pressure ![]() | \
Resistance ![]() | \
Flow rate ![]() | \
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