answers already passed 2025
how does the body decrease blood vessel radius - correct answer
vasoconstriction
when the radius of the flow tube is decreased, the _____ - correct answer
fluid flow rate decreases
laminar flow of the blood is achieved through _____ - correct answer
vasodialation
in this activity, which of the following were kept constant? - correct answer
blood vessel radius and blood vessel length
which of the following describes the graph of the flow versus viscosity? -
correct answer as viscosity increases, the flow rate decreased and the graph
was curved
which viscosity had the fastest flow rate? - correct answer 1
what is the typical range for the viscosity of the blood? - correct answer 3 to 5
increasing blood vessel length _____ - correct answer has the same effect as
decreasing blood vessel radius and increases resistance to flow
which flow tube length had the greatest flow rate? - correct answer 10 mm
, which of the following has the greatest effect on blood flow? - correct answer
blood vessel radius
which of the following describes why body needs to increase vessel length? -
correct answer to accommodate weight gain and height changes
which of the following results in an increase in fluid flow rate? - correct answer
increase in pressure and increase in radius diameter
describe the plot of pressure versus flow rate - correct answer it was linear,
and the flow rate increased with increased pressure
in this activity, we changed the pressure by the left beaker. This is analogous
to _____ - correct answer increase the force of contraction of the heart
volume in the pump when the pump piston all the way down represents the
_____ - correct answer end systolic volume
when the flow tube radius increased, ______ - correct answer resistance
decreased and pump rate increased to maintain pressure
which of the following stayed constant throughout this activity? - correct
answer stroke volume
which right flow tube radius resulted in the fastest flow rate? - correct answer
5.0 mm
increase in stroke volume is a result of ______ - correct answer increased
contractility of the heart, increased EDV and increased preload