Exam 11 - Overall

Question 1 of 15

1

which is a correct statement about the blood vessels?

Select one or more of the following:

blood pressure and blood flow are inversely related
norepinephrine can cause both vasoconstriction and vasodilation
the volume of blood and the hydrostatic pressure are inversely related
almost all of the blood vessels are line with endothelial cells
blood pressure and blood flow are directly related
all of the blood vessels are lined with endothelial cells
norepinephrine can cause vasoconstriction but not vasodilation

Explanation

Question 2 of 15

1

Which is a correct statement about the actions of the heart?

Select one or more of the following:

decreasing the blood vessel size will decrease the blood pressure
testosterone can impact the cardiac output
increasing the arterial pressure will instantly decrease the end systolic volume
the end diastolic volume is only sometimes greater than the end systolic volume
the end diastolic volume is always greater than the end systolic volume
testosterone cannot impact the cardiac output

Explanation

Question 3 of 15

1

Epinephrine causes an increase in in the muscles surrounding the arterioles near the muscles.

Select one or more of the following:

myosin light chain kinase activity - bicep
amount of calcium-bound troponin - bicep
myosin light chain kinase activity - stomach
amount of calcium-bound troponin - stomach

Explanation

Question 4 of 15

1

At the end of the _ phase, you can expect the ventricles be mostly ___

Select one or more of the following:

diastolic - full
systemic - full
diastolic - empty
systemic - empty

Explanation

Question 5 of 15

1

On a hot summer day, Alex and Usman were frolicking in a water sprinkler which hit them with a gentle shower of water. Usman did not like Alex's comments about his favorite soccer team. He took off the sprinkler and blasted Alex's chest with water directly from the hose. If we consider the water impacts on Alex as like hydrostatic pressure impacts in blood vessels, then the sprinkler is like a(n) _ and the hose is like a(n) __

Select one or more of the following:

artery - arteriole
capillary - vein
capillary - artery
artery - capillary

Explanation

Question 6 of 15

1

which is a correct statement about the myocardium?

Select one or more of the following:

the intercalated discs allow for both intracellular but not extracellular fluid movement
extracellular calcium enters to bind to voltage-gated channels of the SR
contraction occurs due to the binding of calcium to troponin
the myofibers are fully linear like skeletal myofibers
myofibers are not fully linear like skeletal myofibers

Explanation

Question 7 of 15

1

which is a correct order of actions for a single cardiac cycles (NOTE: immediately adjacent is not required; B-E is acceptable)

Select one or more of the following:

right atrium contracts bottom to top - bundles of His conduct AP - left ventricle contracts
left atrium contracts top to bottom - right atria contracts - atrioventricular node activated
sinoatrial node activated - both ventricles contract - atrioventricular node activated
bundles of His conduct AP - ventricles contract bottom to top - atrioventricular node activated
sinoatrial node activated - ventricles contract bottom to top - atrioventricular node activated

Explanation

Question 8 of 15

1

During myocardial contraction, the level of calcium in the intracellular fluid is ___ and the calcium binds to _ unique locations(s).

Select one or more of the following:

increasing - 1
unchanged - 1
increasing - 2
unchanged - 2

Explanation

Question 9 of 15

1

a decrease in the results in a decrease in the _

Select one or more of the following:

end systolic volume - hydrostatic pressure
arterial elasticity - stoke volume
arteriolar vasodilation - cardiac output
nitric oxide level - end diastolic volume

Explanation

Question 10 of 15

1

which is a correct match of extrinsic control and impact an arterioles near the liver?

Select one or more of the following:

epinephrine - vasodilation
angiotensin II - vasoconstriction
nitric oxide - vasoconstriction
endothelin-1 - vasoconstriction
epinephrine - vasoconstriction

Explanation

Question 11 of 15

1

If the decreases, then the cardiac output can remain constant if the __ increases

Select one or more of the following:

end diastolic volume - heart rate
heart rate - conduction velocity
end systolic volume - heart rate
all three statements are correct

Explanation

Question 12 of 15

1

which is a correct method to result in an increase end systolic volume?

Select one or more of the following:

hardening of the arteries
very large increase in the end diastolic volume
increased elasticity of the arteries

Explanation

Question 13 of 15

1

Mrs. Flarplord Baggins redesigned Crabix to disrupt heart activity. The impacted hearts have a final "dub" but not further sounds are ever heart. Which is correct statement about Crabix could be impacting the heart?

Select one or more of the following:

it is impacting how electrical signals move from one cardiac cell to another
it is disrupting the activity of the atrioventricular node
it is not impacting how electrical signals move from one cardiac cell to another
it is not disrupting the activity of the atrioventricular node

Explanation

Question 14 of 15

1

During a recent run together, Ms. Scarlet realized that Mr. Gray was having a hard time keeping up with her. They go to a clinic to get him checked out. The doctor listens to his heart and hears "lub shh dub". Which is a correct statement about Mr. Gray's heart?

Select one or more of the following:

he has damage to a semilunar valve
blood is back flowing into his ventricles
on the EKG, the "shhh" occurs before the T wave
blood is back flowing into the atria

Explanation

Question 15 of 15

1

Oh, No! an Anatomy lab accident cause you to be shrunk and transported into your lab partner's circulatory system. Fortunately, you were wearing your night vision goggles when the accident occur. Consequently, you are able to see that you are in a vessel where you are not having your position changed very quickly and can see skeletal myofibers through the wall of the vessel. You correctly determine that you

Select one or more of the following:

have been shrunk to smaller than a red blood cell
are not going to have to worry much about being banged against the vessel walls by the current
have been shrunk but are still much larger than a red blood cell

	Created by Phebe Kuo about 7 years ago

need to check answers and fill in all except JUN

Exam 11 - Overall

Question 1 of 15

which is a correct statement about the blood vessels?

Select one or more of the following:

Explanation

Question 2 of 15

Which is a correct statement about the actions of the heart?

Select one or more of the following:

Explanation

Question 3 of 15

Epinephrine causes an increase in ____ in the muscles surrounding the arterioles near the ____ muscles.

Select one or more of the following:

Explanation

Question 4 of 15

At the end of the _____ phase, you can expect the ventricles be mostly _______

Select one or more of the following:

Explanation

Question 5 of 15

Select one or more of the following:

Explanation

Question 6 of 15

which is a correct statement about the myocardium?

Select one or more of the following:

Explanation

Question 7 of 15

which is a correct order of actions for a single cardiac cycles (NOTE: immediately adjacent is not required; B-E is acceptable)

Select one or more of the following:

Explanation

Question 8 of 15

During myocardial contraction, the level of calcium in the intracellular fluid is _____ and the calcium binds to ___ unique locations(s).

Select one or more of the following:

Explanation

Question 9 of 15

a decrease in the ____ results in a decrease in the _____

Select one or more of the following:

Explanation

Question 10 of 15

which is a correct match of extrinsic control and impact an arterioles near the liver?

Select one or more of the following:

Explanation

Question 11 of 15

If the ____ decreases, then the cardiac output can remain constant if the ______ increases

Select one or more of the following:

Explanation

Question 12 of 15

which is a correct method to result in an increase end systolic volume?

Select one or more of the following:

Explanation

Question 13 of 15

Mrs. Flarplord Baggins redesigned Crabix to disrupt heart activity. The impacted hearts have a final "dub" but not further sounds are ever heart. Which is correct statement about Crabix could be impacting the heart?

Select one or more of the following:

Explanation

Question 14 of 15

During a recent run together, Ms. Scarlet realized that Mr. Gray was having a hard time keeping up with her. They go to a clinic to get him checked out. The doctor listens to his heart and hears "lub shh dub". Which is a correct statement about Mr. Gray's heart?

Select one or more of the following:

Explanation

Question 15 of 15

Select one or more of the following:

Explanation

Epinephrine causes an increase in in the muscles surrounding the arterioles near the muscles.

At the end of the _ phase, you can expect the ventricles be mostly ___

During myocardial contraction, the level of calcium in the intracellular fluid is ___ and the calcium binds to _ unique locations(s).

a decrease in the results in a decrease in the _

If the decreases, then the cardiac output can remain constant if the __ increases