Test
Exam 11 JUN
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Preguntas del test (15)
1which is a correct statement about the blood vessels?
- Ablood pressure and blood flow are inversely related
- Bnorepinephrine can cause both vasoconstriction and vasodilation
- Cthe volume of blood and the hydrostatic pressure are inversely related
- Dalmost all of the blood vessels are line with endothelial cells
2Which is a correct statement about the actions of the heart?
- Adecreasing the blood vessel size will decrease the blood pressure
- Btestosterone can impact the cardiac output
- Cincreasing the arterial pressure will instantly decrease the end systolic volume
- Dthe end diastolic volume is only sometimes greater than the end systolic volume
3Epinephrine causes an increase in ____ in the muscles surrounding the arterioles near the ____ muscles.
- Amyosin light chain kinase activity - bicep
- Bamount of calcium-bound troponin - bicep
- Cmyosin light chain kinase activity - stomach
- Damount of calcium-bound troponin - stomach
4At the end of the _____ phase, you can expect the ventricles be mostly _______
- Adiastolic - full
- Bsystemic - full
- Cdiastolic - empty
- Dsystemic - empty
5On 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) ______
- Aartery - arteriole
- Bcapillary - vein
- Ccapillary - artery
- Dartery - capillary
6which is a correct statement about the myocardium?
- Athe intercalated discs allow for both intracellular but not extracellular fluid movement
- Bextracellular calcium enters to bind to voltage-gated channels of the SR
- Ccontraction occurs due to the binding of calcium to troponin
- Dthe myofibers are fully linear like skeletal myofibers
7which is a correct order of actions for a single cardiac cycles (NOTE: immediately adjacent is not required; B-E is acceptable)
- Aright atrium contracts bottom to top - bundles of His conduct AP - left ventricle contracts
- Bleft atrium contracts top to bottom - right atria contracts - atrioventricular node activated
- Csinoatrial node activated - both ventricles contract - atrioventricular node activated
- Dbundles of His conduct AP - ventricles contract bottom to top - atrioventricular node activated
8During myocardial contraction, the level of calcium in the intracellular fluid is _____ and the calcium binds to ___ unique locations(s).
- Aincreasing - 1
- Bunchanged - 1
- Cincreasing - 2
- Dunchanged - 2
9a decrease in the ____ results in a decrease in the _____
- Aend systolic volume - hydrostatic pressure
- Barterial elasticity - stoke volume
- Carteriolar vasodilation - cardiac output
- Dnitric oxide level - end diastolic volume
10which is a correct match of extrinsic control and impact an arterioles near the liver?
- Aepinephrine - vasodilation
- Bangiotensin II - vasoconstriction
- Cnitric oxide - vasoconstriction
- Dendothelin-1 - vasoconstriction
11If the ____ decreases, then the cardiac output can remain constant if the ______ increases
- Aend diastolic volume - heart rate
- Bheart rate - conduction velocity
- Cend systolic volume - heart rate
- Dall three statements are correct
12which is a correct method to result in an increase end systolic volume?
- Ahardening of the arteries
- Bvery large increase in the end diastolic volume
- Cboth statements are correct
- Dneither statement is correct
13Mrs. 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?
- Ait is impacting how electrical signals move from one cardiac cell to another
- Bit is disrupting the activity of the atrioventricular node
- Cboth statement are correct
- Dneither statement is correct
14During 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?
- Ahe has damage to a semilunar valve
- Bblood is back flowing into his ventricles
- Con the EKG, the "shhh" occurs before the T wave
- Dall three statements are correct
15Oh, 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
- Ahave been shrunk to smaller than a red blood cell
- Bare not going to have to worry much about being banged against the vessel walls by the current
- Cboth statements are correct
- Dneither statement is correct
Información
- Descripción
- need to put correct answers - currently just have filler correct answers
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- English
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