WorksheetsBIO SCI 203 PQ3
Total questions: 52
Worksheet time: 26mins
What does flow rate mean?
change in pressure/resistance
laminar flow
korotkoff sounds
turbulent flow
What organ generates the greatest amount of pressure?
liver
heart
lungs
kidneys
What is resistance determined by?
vessel diameter
blood flow
pressure
blood loss
What does high resistance do to your blood flow?
high blood flow
turbulent blood flow
korotkoff sounds
low blood flow
What organs have a constant high demand of metabolic needs?
brain, heart, kidneys, liver
lungs, pancreas
pancreas, stomach, spleen
spleen, lungs
What type of blood flow is smooth and quick with no changes in vessel shape?
korotkoff sounds
laminar flow
blood pressure
turbulent flow
What characteristics does turbulent blood flow have?
rigid and slow
smooth and quick
bumpy and noisy
quiet and smooth
true or false: levels of antidiuretic hormone and aldosterone will increase at the same time
true
false
true or false: low blood volume will lead to an increase in levels of ANH
true
false
How would making less urine effect the animal's blood volume?
blood volume increases
blood volume decreases
laminar
turbulent
what is considered normal blood pressure?
110/90
90/120
180/100
120/80
In which blood flow type does Korotkoff sounds occur?
turbulent blood flow
laminar blood flow
blood pressure
blood volume
Does pressure increase or decrease when it moves away from the heart and flows from arteries to veins?
increases
decreases
What is the function of your capillaries?
blood pressure
exchange between blood and tissues
blood volume
resistance
What is the function of your veins?
returns blood to heart
stores blood
both
what do your portal veins connect?
ligaments
arteries
2 capillary networks
blood pressure
What is your mean arterial blood pressure?
average pressure within the arteries
average pressure within the blood
average pressure within the kidneys
average pressure within the capillaries
What is the formula to find your mean arterial blood pressure?
MAP= PR x HR
MAP= SA x HR
MAP= HR x SV
MAP= CO x PR
What can occur if MAP is too high?
excessive burden on heart
organ damage
blot clots
all of the above
What is the definition of cardiac output?
the volume of blood pumped by each ventricle in 1 min
the volume of blood pumped by each ventricle in 2 min
blood flow type
blood pressure
What is the formula to find your cardiac output?
CO= MAP x HR
CO= PR x MAP
CO= HR x SV
CO= SV x MAP
Put vessels in order a drop of blood travels through them:
Ventricle, elastic, muscular, arterioles, capillaries, venules, veins
Ventricle, muscular, elastic, venules, veins, arterioles
Heart, muscular, capillaries, arterioles, venules
Heart, elastic, muscular, arterioles, venules, veins, capillaries
Put the layers of a blood vessel in order from inside to outside:
tunica intima, tunica media, tunica externa
tunica media, tunica intima, tunica externa
tunica externa, tunica media, tunica intima
tunica intima, tunica externa, tunica media
what type of tissues are present in the tunica intima?
layers of endothelial tissue
single layer of endothelial tissue
smooth muscle
elastic fibers
What makes up the tunica media:
smooth muscles, elastic fibers
connective tissue
endothelial cells
squamous
What makes up the tunica externa?
squamous cells
endothelial tissue
different types of connective tissue
muscle tissue
What makes capillaries different?
blood pressure
only have tunica intima layer
they are long
they are the strongest vessel
What is hydrostatic pressure?
resistance
force exerted by a liquid that is trapped within a space
pressure
blood flow
What is critical closing pressure?
moderate pressure
pressure below which the vessel collapses and blood flow
through the vessel stops
very high pressure
very low pressure
Causes of extremely low pressure
circulatory shock
dehydration
hemorrhage
anaphylaxis
all of the above
Arterioles:
thinner than arteries, still able to change
diameter
unable to change diameter
thicker than arteries
fast and smooth blood flow
Where does blood in a contracted pre-capillary sphincter go?
in throughfare channel
outside capillary
inside capillary
capillary bed
What molecules contract pre-capillary sphincters
high O2
high nutrients (glucose)
amino acids
all of the above
How do venous valves prevent backflow?
diastole/systole
turbulent flow
skeletal muscles contraction pushes blood towards heart
laminar flow
How does the Sympathetic NS set rate of SA node action potential frequency?
use of serotonin
use of norepinephrine
use of ach
use of acetyl-coa
How does the parasympathetic NS set rate of SA node action potential frequency?
use of acetyl coa
use of dopamine
use of ach
use of epinephrine
Does the norepinephrine in the SNS increase or decrease heart rate?
increase
decrease
Does the ach in the PNS increase or decrease heart rate?
increase
decrease
What is the effect of contractility with norepinephrine in the sympathetic NS?
increases contractility and stroke volume
decreases contractility
decreases stroke volume
decreases heart rate
Baroreceptor reflex:
changes in cardiac output and vessel diameter caused by changes in
mean arterial pressure
changes in SV and HR
changes in CO and MAP
changes in ESV
Relationship between blood volume and blood pressure
blood volume is low + pressure is high
blood volume is high + pressure is low
Blood volume + blood pressure are proportional
What does angiotensin 2 effect within the Renin-angiotensin-aldesterone system?
vasoconstriction
decrease in urine volume
increase in salt and water consumption
all of the above
What is the initial stimulus within the Renin-angiotensin-aldosterone system
low blood pressure/volume
high blood pressure/volume
proportional blood pressure/volume
vasoconstriction
What is the overall change within the Renin-angiotensin-aldosterone system
increase in blood volume/ SV
proportional blood volume and MAP
increase in blood volume and MAP
decrease in blood volume and MAP
What is the stimulus of the antidiuretic hormone?
decrease in SV
increase in solute concentration
decrease in solute concentration
increase in SV
Effects of ADH
vasoconstriction
decrease in urine volume
restore blood volume and pressure
all of the above
What is the stimulus of ANH
CO
increased stretching of atria
decreased stretching of atria
SV
Venous return:
low volume of blood
high volume of blood
volume of blood returning to heart from pulmonary veins
volume of blood returning to the heart from systemic veins
Afterload:
Pressure the contracting left ventricle must produce to overcome the pressure in the
aorta and eject blood
pressure in systemic veins
Pressure the contracting right ventricle must produce to overcome the pressure in the
aorta and eject blood
pressure in pulmonary veins
STROKE volume:
korokoff sounds
amount of blood pressure
amount of blood pumped during each cardiac cycle
type of blood flow
Contractility:
moderate contraction
strength of contraction
high contraction
low contraction
Cardiac output:
volume of blood pumped by each ventricle in 1 year
volume of blood pumped by each ventricle in 1 second
volume of blood pumped by each ventricle in 1 hour
volume of blood pumped by each ventricle in 1 minute
