Alexandra Bozan
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Study Guide: Circulation of Blood

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Alexandra Bozan
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Study Guide: Circulation of Blood

Question 1 of 44

1

The term used to describe a collection of mechanisms that influence the active and changing circulation blood is

Select one of the following:

  • perfusion

  • cardiac output

  • stroke volume

  • hemodynamics

Explanation

Question 2 of 44

1

Blood flows because of

Select one of the following:

  • a pressure gradient

  • Fick's formula

  • inotropic factors

  • the ejection fraction

Explanation

Question 3 of 44

1

Determining the cardiac output is usually accomplished by

Select one of the following:

  • using Fick's formula

  • using Starling's law

  • calculating SV X CR = CO

  • using Poiseuille's law

Explanation

Question 4 of 44

1

Which of the following has the ability to alter heart rate

Select one of the following:

  • chonotropic factors

  • baroreceptors

  • carotid sinus reflex

  • all of the above

Explanation

Question 5 of 44

1

A change in heart rate or stroke volume does not always change the heart's output, the amount of blood in the arteries, or the blood pressure

Select one of the following:

  • True
  • False

Explanation

Question 6 of 44

1

If blood pressure within the aorta or carotid sinus suddenly increases beyond the set point, the control center will increase vagal inhibition and return the blood pressure to normal.

Select one of the following:

  • True
  • False

Explanation

Question 7 of 44

1

The amount that the CO can increase above the resting value is called the inotropic factor.

Select one of the following:

  • True
  • False

Explanation

Question 8 of 44

1

The ejection fraction is related to the stroke volume

Select one of the following:

  • True
  • False

Explanation

Question 9 of 44

1

Peripheral resistance in arteries determines arterial blood pressure

Select one of the following:

  • True
  • False

Explanation

Question 10 of 44

1

Select from the dropdown lists to complete the text.

( Viscocity, vasoconstriction, cardiac output, hypoxia, vasomotor pressure flex, hypercapnia, active hypermia, ischemic, perfusion, contractility ): thickness of blood
( Vasoconstriction, contractility, perfusion, ischemic, active hypermia, hypercapnia, hypoxia, vasomotor pressure flex, viscocity, cardiac output ): reduction in vessel diameter
( Perfusion, cardiac output, vasoconstriction, viscocity, vasomotor pressure flex, hypoxia, hypercapnia, active hypermia, ischemic, contractility ): flow through
( Cardiac Output, vasoconstriction, viscocity, vasomotor pressure flex, hypoxia, hypercapnia, active hypermia, ischemic, perfusion, contractility ): amount of blood that flows out of a ventricle of the heart per unit of time
( Hypoxia, vasoconstriction, cardiac output, viscocity, vasomotor pressure flex, hypercapnia, active hypermia, ischemic, perfusion, contractility ): deficiency of blood oxygen
( Ischemic, contractility, perfusion, active hypermia, hypercapnia, hypoxia, vasomotor pressure flex, viscocity, cardiac output, vasoconstriction ): inadequate blood supply
( Active hyperemia, vasoconstriction, cardiac output, viscocity, vasomotor pressure flex, hypoxia, hypercapnia, ischemic, perfusion, contractility ): local vasolidation
( Contractility, perfusion, ischemic, active hypermia, hypercapnia, hypoxia, vasomotor pressure flex, viscocity, cardiac output, vasoconstriction ): the ability of a muscle cell to shorten to product movement
( Hypercapnia, vasoconstriction, cardiac output, viscocity, vasomotor pressure flex, hypoxia, active hypermia, ischemic, perfusion, contractility ): excess carbon dioxide
( Vasometer pressure flex, vasoconstriction, cardiac output, viscocity, hypoxia, hypercapnia, active hypermia, ischemic, perfusion, contractility ): inititiated by a change in arterial blood pressure

Explanation

Question 11 of 44

1

Fill the blank spaces to complete the text.

The ability of blood vessels to expand and adapt to higher pressure and maintain normal flow is called the .

Explanation

Question 12 of 44

1

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Increased respirations and increased tend to coincide.

Explanation

Question 13 of 44

1

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is the exchange of materials between plasma in the capillaries and the surrounding interstitial fluid of the systemic tissues.

Explanation

Question 14 of 44

1

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tends to promote diffusion of fluid into the plasma.

Explanation

Question 15 of 44

1

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The more ADH that is secreted, the more water will be into the blood from the urine and the greater the blood plasma volume will become.

Explanation

Question 16 of 44

1

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of aldosterone secretion changes blood plasma volume.

Explanation

Question 17 of 44

1

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is secreted by specialized cells in the atrial wall in response to overstretching.

Explanation

Question 18 of 44

1

Fill the blank space to complete the text.

is high blood pressure.

Explanation

Question 19 of 44

1

The diastolic blood pressure is

Select one of the following:

  • the heart contracting

  • the heart relaxing

  • the pressure in the atria

  • the pressure in the ventricles

Explanation

Question 20 of 44

1

With a blood pressure of 120/80, the number 80 indicates

Select one of the following:

  • the diastolic reading

  • they systolic reading

  • the Korotkoff sounds

  • the ejection phase

Explanation

Question 21 of 44

1

The mean arterial pressure MAP for a BP of 130/90 is

Select one of the following:

  • 90

  • 93

  • 100

  • 103

Explanation

Question 22 of 44

1

Fill the blank space to complete the text.

is the apparatus used to measure blood pressure.

Explanation

Question 23 of 44

1

Fill the blank space to complete the text.

If blood gushes forth in spurts with considerable force, you have most likely cut an .

Explanation

Question 24 of 44

1

Fill the blank space to complete the text.

The pressure points can be used to stop bleeding.

Explanation

Question 25 of 44

1

Starling's law of the heart states that

Select one of the following:

  • blood flows from areas of high pressure to areas of low pressure

  • the volume of blood ejected from the ventricle is constant

  • the more stretched the heart fibers are at the beginning of a contraction, the stronger is their contraction

  • average heart rate is 72 beats per minute

Explanation

Question 26 of 44

1

Select from the dropdown list to complete the text.

The vagus nerve is said to act as a ( brake, temperature monitor, positive feedback loop, ejection mechanism ) on the heart.

Explanation

Question 27 of 44

1

Under normal conditions, blood viscosity changes

Select one of the following:

  • frequently

  • during hemorrhage only

  • under stress

  • very little

Explanation

Question 28 of 44

1

The popliteal pulse point is found

Select one of the following:

  • at the bend of the elbow

  • on the dorsum of the foot

  • behind the knee

  • behind the medial amlleolus

Explanation

Question 29 of 44

1

Peripheal resistance is primarily affected by

Select one of the following:

  • the length of myocardial fibers

  • blood viscocity and the diameter of arterioles

  • the capacity of the blood reservoirs

  • the elasticity of the heart

Explanation

Question 30 of 44

1

Septic shock is caused by

Select one of the following:

  • complications of toxins in the blood

  • a nerve condition

  • a drop in blood pressure

  • blood vessel dilation

Explanation

Question 31 of 44

1

Hypovolemic shock is caused by

Select one of the following:

  • heart failure

  • dilated blood vessels

  • a loss in blood volume

  • a severe allergic reaction

Explanation

Question 32 of 44

1

The shift of the blood reservoir to the veins in the legs when standing is called the

Select one of the following:

  • orthostatic effect

  • total peripheral resistance effect

  • vasomotor mechanism

  • medullary ischemic reflex

Explanation

Question 33 of 44

1

Fick's formula is used to determining

Select one of the following:

  • stroke volume

  • cardiac output

  • cardiac reserve

  • ejection fraction

Explanation

Question 34 of 44

1

The minute volume is equal to the

Select one of the following:

  • the pressure gradient divided by the resistance

  • mean arterial pressure divided by the cardiac output

  • cardiac output divided by the ejection fraction

  • cardiac output divided by the cardiac reserve

Explanation

Question 35 of 44

1

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The chief determinant of arterial blood pressure is the of blood in the arteries.

Explanation

Question 36 of 44

1

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Factors that affect the strength of myocardial contraction and, therefore, stroke volume are factors.

Explanation

Question 37 of 44

1

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Starling's law of the heart states that within limits, the longer, or more stretched, the heart fibers art the beginning of contraction, the is their contraction.

Explanation

Question 38 of 44

1

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The is the ratio of the stroke volume to the end-diastolic volume (EDV).

Explanation

Question 39 of 44

1

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The pumping work that the heart must do to push blood into the arteries is known as .

Explanation

Question 40 of 44

1

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The hormone most known as a heart accelerator is .

Explanation

Question 41 of 44

1

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During exercise blood from reservoirs is redistributed to more active structures such as muscles and the heart.

Explanation

Question 42 of 44

1

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The blood vessel commonly used to perform blood pressure readings is the .

Explanation

Question 43 of 44

1

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The sounds made during the measurement of a blood pressure are called .

Explanation

Question 44 of 44

1

Fill the blank spaces to complete the text.

Blood flows most rapidly in the and most slowly in the .

Explanation

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