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FHD Block 2 Exam Questions and Answers 100% Solved | Graded A+
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FHD Block 2 Exam Questions and Answers 100% Solved | Graded A+ Increased muscular activity or hemorrhage causes _____________ to help maintain blood pressure by diverting blood out of the _____________ system where about 60% of it is normally kept while at rest. About 15% of blood resides in t...

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  • December 8, 2024
  • 73
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • fhd

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  • FHD
  • FHD

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FHD Block 2 Exam Questions and

Answers 100% Solved | Graded A+


Increased muscular activity or hemorrhage causes _____________ to help

maintain blood pressure by diverting blood out of the _____________

system where about 60% of it is normally kept while at rest.



About 15% of blood resides in the _____________ system, while the rest is

found in capillaries, heart, and lungs. - ✔✔venoconstriction; venous; arterial

Blood flowing out of the right heart will be in SERIES/PARALLEL, while

blood flowing out of the left heart will be in SERIES/PARALLEL.



This is an important distinction, because a _____________ system allows

flow to be distributed to organs differently as they need it. - ✔✔series;

parallel; parallel

_____________ is the volume of blood ejected from the heart per unit time.

As such, it can be calculated by the following equation: _____________.




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©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.

,_____________ is the difference between maximum and resting CO

(normally _____________ fold) - ✔✔Cardiac output (CO); CO = stroke

volume x heart rate; cardiac reserve; 4-5

The _____________ says that the amount of a substance that enters an

organ over time minus the amount that leaves must equal the rate of tissue

utilization of that substance. (tissue consumption = blood flow ([arterial] -

[venous]))



It can be used to determine cardiac output via the following equation:

_____________ - ✔✔Fick Principle; CO = (Tissue O2 consumption) /

([arterial O2] - [venous O2])

Ohm's law of circulation gives the following equation: _____________



Poiseuille's Law can be derived by substituting in the factors that resistance

is proportional to, giving the following proportionality: _____________

(note: η is the blood viscosity and L is the total blood vessel length) -

✔✔Flow (Q, or CO) = Δpressure / resistance (SVR or TPR); CO (flow) is

proportional to (ΔP x r^4) / (η x L)




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©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.

,Since we know that vascular resistance _____________ with increasing

hematocrit (due to increasing viscosity), Poiseuille's law tells us that flow

will _____________. - ✔✔increases; decrease

A 37 year-old woman undergoes a CT scan of the abdomen which

revealed a large peritoneal mass. Subsequent magnetic resonance

angiography showed that the aorta was constricted to approximately one-

half of its original resting diameter. As a result, resistance to blood flow

through this vessel would be _____________. - ✔✔increased 16-fold

Factors that contribute to tendency for turbulent flow include

_____________ flow velocity, _____________ diameter tube,

_____________ fluid density, and _____________ fluid viscosity.



Note: don't need to know equation, but turbulent flow is likely if Re exceeds

the critical value of _____________. This usually results from something

like atherosclerosis. - ✔✔high; large; high; low; 2300

_____________ is defined as the difference between systolic and diastolic

pressures. Numerous conditions (aortic stenosis, tamponade, blood loss,

shock, exercise, aortic insufficiency, aging, etc) can change this value, but

it all boils down to two factors: _____________ and _____________.



3
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.

, Why does pulse pressure increase with age? - ✔✔pulse pressure; stroke

volume; arterial compliance; decreased arterial compliance

Mean arterial pressure (MAP) formula: _____________. - ✔✔MAP =

diastolic BP + (systolic - diastolic) / 3

_____________ = The volume of blood contained in a distensible structure

for given pressure. Formula: _____________



_____________: Pressure difference between the inside and outside of the

tube



_____________: capacity of vasculature to stretch (dilate) (this = ∆ Volume

/ ∆ Pressure x Initial Volume) - ✔✔Capacitance; Capacitance = Volume /

Transmural Pressure; transmural pressure; vascular distensibility

Most of the blood pressure is dissipated while traveling through

_____________ since they provide the most resistance ("resistance

vessels").




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©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.

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