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A&PII > Chapter 20 and Blood Pressure Regulation > Flashcards

Chapter 20 and Blood Pressure Regulation Flashcards

1
Q

Blood vessel diameter decreases(vasocondtriction) , peripheral vascular resistance ______________________

  1. increases
  2. decreases
  3. stay the same
  4. I don’t know
A

Increases

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2
Q

Predict what would happen with the Heart rate (HR) , Stroke volume (SV), and Cardiac output (CO) with increased sympathetic output

  1. Increased HR, increased SV, Increased CO
  2. Increased HR, decreased SV, increased CO
  3. Decreased HR, decreased SV, decreased CO
  4. Increased HR, Increased SV, decreased CO
A

Increased HR, increased SV, Increased CO

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3
Q

Which capillary type would you claim to be the most permeable to large proteins?

  1. continuous
  2. fenestrated
  3. sinusoid
  4. portal
  5. glomerular
A

sinusoid

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4
Q

When normal arterial blood pressure decreases, baroreceptors cause a response that

  1. decreases stroke volume
  2. returns blood pressure to normal
  3. results in parasympathetic stimulation of the heart
  4. decreases heart rate
A

returns blood pressure to normal

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5
Q

Renin production increases when blood flow to the kidney_________________________

  1. increase
  2. decrease
  3. stay the same
  4. I don’t know
A

decrease

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6
Q

__________ mechanisms are most important for regulating arterial pressure on a short-term basis; __________ mechanisms are most important for regulating arterial pressure on a long-term basis.

  1. baroreceptor,/chemoreceptor
  2. hormonal / baroreceptor
  3. chemoreceptor/ baroreceptor
  4. baroreceptor / hormonal
  5. hormonal / chemoreceptor
A

baroreceptor / hormonal

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7
Q

Which statement is INCORRECT?

  1. Afterload is a resistance in arteries to ejection of blood by ventricles
  2. Preload is the amount of venricular stretch at the end of ventricular diastole
  3. inotropic agents alter contractility (force of the contraction of the heart)
  4. Stroke volume is affected by afterload, preload, and contractility
  5. 70% of end diastolic volume contributed during atrial systole
A

70% of end diastolic volume contributed during atrial systole

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8
Q

Which is the most significant factor affecting peripheral vascular resistance?

  1. Blood vessels length
  2. blood vessels diameter
  3. blood viscosity
  4. venous return
A

blood vessels diameter

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9
Q

Decrease of plasma osmotic pressure in the systemic capillary will __________________________reabsorption of fluid from interstitial space.

  1. increase
  2. decrease
  3. stay the same
  4. I don’ know
A

decrease

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10
Q

Increase of hydrostatic pressure in the capillary will ______________________________Net Filtration Rate .

  1. increase
  2. decrease
  3. stay the same
  4. I don’t know
A

increase

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11
Q

A single molecule of hemoglobin can transport up to ___ molecules of oxygen

a.) 1
b.) 2
c.) 3
d.) 4
e.) 8

A

4

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12
Q

The walls of most blood vessels are innervated by

  1. myelinated somatic motor neurons.
  2. unmyelinated vagus nerve
  3. unmyelinated parasympathetic neurons.
  4. unmyelinated sympathetic neurons
A

unmyelinated sympathetic neurons

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13
Q

An increase in plasma levels of erythropoietin will cause blood viscosity to__________________________________________________________________________________________

  1. increase
  2. decrease
  3. stay the same
  4. I don’t know
A

increase

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14
Q

__________ mechanisms are most important for regulating arterial pressure on a short-term basis; __________ mechanisms are most important for regulating arterial pressure on a long-term basis.

  1. baroreceptor,/chemoreceptor
  2. hormonal / baroreceptor
  3. chemoreceptor/ baroreceptor
  4. baroreceptor / hormonal
  5. hormonal / chemoreceptor
A

baroreceptor / hormonal

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15
Q

All of the following is true about blood pressure regulation , except:

  1. blood pressure depends on cardiac output and peripheral vascular resistance
  2. high resistance, which is caused by vasodilation, increase in vessel length, or increase in blood viscosity decreases blood pressure
  3. increase of blood volume will lead to increase of blood pressure
  4. increase of venous return will increase blood pressure
  5. all statements are correct
A

high resistance, which is caused by vasodilation, increase in vessel length, or increase in blood viscosity decreases blood pressure

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16
Q

Which capillary type would you claim to be the most permeable to large proteins?

1.continuous
2. fenestrated
3. sinusoid
4. portal
5. glomerular

17
Q

Decrease of hydrostatic pressure in the capillary will ______________________________Net Filtration Rate .

  1. increase
  2. decrease
  3. stay the same
  4. I don’t know
18
Q

Which statement is INCORRECT?

  1. Afterload is a resistance in arteries to ejection of blood by ventricles
  2. Preload is the amount of venricular stretch at the end of ventricular diastole
  3. inotropic agents alter contractility (force of the contraction of the heart)
  4. Stroke volume is affected by afterload, preload, and contractility
  5. All of the statements are correct
A

All of the statements are correct

19
Q

Which of these conditions occur as a result of increased angiotensin II production?

  1. vasoconstriction
  2. increase venous return
  3. increase preload
  4. increase aldosterone secretion
  5. all of the above
A

all of the above

20
Q

Which is the most significant factor affecting peripheral vascular resistance?

  1. Blood vessels length
  2. blood vessels diameter
  3. blood viscosity
  4. venous return
A

blood vessels diameter

21
Q

Which of these mechanisms results in increased blood pressure?

  1. increased production of atrial natriuretic peptide (hormone)
  2. decreased production of antidiuretic hormone
  3. decreased production of epinephrine
  4. increased production of renin
  5. decreased production of vasopressin
A

increased production of renin

22
Q

Which of these conditions occur as a result of increased angiotensin II production?

  1. vasoconstriction
  2. increase venous return
  3. increase preload
  4. increase aldosterone secretion
  5. all of the above
A

all of the above

23
Q

At the capillary, __________ causes fluid to leave the capillary and __________ causes fluid to enter the capillary.

  1. blood pressure (hydrostatic pressure) , osmosis (osmotic pressure)
  2. osmosis, blood pressure
  3. blood pressure, lymphatic pressure
  4. lymphatic pressure, blood pressure
  5. vasoconstriction, vasodilation
A

blood pressure (hydrostatic pressure) , osmosis (osmotic pressure)

24
Q

Blood vessel diameter increases (vasodilation) , peripheral vascular resistance ______________________

  1. increases
  2. decreases
  3. stay the same
  4. I don’t know
25
Q

If the liver was unable to produce normal quantities of plasma proteins, plasma osmotic pressure would________________________________________________________________

  1. increase
  2. decrease
  3. stay the same
  4. I don’t know
26
Q

Which of these mechanisms results in increased blood pressure?

  1. increased production of atrial natriuretic peptide (hormone)
  2. decreased production of antidiuretic hormone
  3. decreased production of epinephrine
  4. increased production of renin
  5. decreased production of vasopressin
A

increased production of renin

A&PII (4 decks)

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