Question 30
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A decrease in parasympathetic stimulation of the SA NODE
Select one:
a. Increase in HR;decrease in cardiac output; increase in BP
b. Increase in HR; increase in cardiac output; increase in BP
c. Decrease in HR; decrease in cardiac output; decrease in BP
d. Decrease in HR; decrease in cardiac output; increase in BP
Question 31
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Sympathetic stimulation of the veins
Select one:
a. Causes vasodilation and an increase in stroke volume
b. Causes vasodilation and a decrease in stroke volume
c. Causes vasoconstriction and a decrease in stroke volume
d. Causes vasoconstriction and an increase in stroke volume
Question 32
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An increase of sympathetic stimulation of the heart ventricular muscles
Select one:
a. Decreases force of contraction; decreases stroke volume; decreases BP
b. Increases force of contraction; increases stroke volume; increases BP
c. Increases force of contraction; decreases stroke volume; increases BP
d. Increases force of contraction; decreases stroke volume; decreases BP
Question 33
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The EKG in B represents
Select one:
a. Heart block
b. Damage caused by a heart attack
c. Tachycardia
d. Bradychardia
e. Ventricular fibrillation
Question 34
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The appropriate treatment to correct the problem in B would be
Select one:
a. Defibrillation
b. Beta blockers
c. Atropine
d. Pacemaker
e. Coronary bypass
Question 35
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The EKG in C represents
Select one:
a. Heart block
b. Damage caused by a heart attackrs
c. Tachycardia
d. Bradychardia
e. Ventricular fibrillation
Question 36
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The second heart sound is caused by
Select one:
a. the ventricles contracting
b. opening of the AV valves
c. closing of the semilunar valves
d. closing of the AV valves
Question 37
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Which term and events apply to a chamber of the heart that is in Systole
Select one:
a. Contracting;filling with blood
b. Relaxing;filling with blood
c. Relaxing ;ejecting blood
d. Contracting;ejecting blood
Question 38
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You listen to the heart beating and you hear a “lub-swish- dup”.
The lub is caused by
Select one:
a. Firing of the SA node
b. Closing of the pulmonary valve
c. Closing of the right AV valve
d. Closing of the aortic valve
Question 39
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Which of the following can increase venous return
Select one:
a. Increase in respiration
b. Increase in movement of skeletal muscle
c. Increased sympathetic stimulation
d. All of the above
Question 40
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The best treatment for tachycardia
Select one:
a. Epinephrine
b. Atropine
c. Alpha Blocker
d. Beta Blocker
30) C, decrease heart rate, decrease cardiac output and decrease BP
Parasympathetic stimulation of SA node release acetylcholine and has all the following effects. Decrease heart rate, decrease conduction, decrease velocity, decrease cardiac out put and decrease in BP.
31) d, cause vasoconstriction and increase strok volume.
Sympathetic stimulation cause vasoconstriction , decreased venous compliance , decrease blood volume , increase venous pressure and cardiac output and stroke volume.
32) b, increase force of contraction, increase stroke volume , increase BP
Sympathetic stimulation of SA node increase heart rate , forceful contraction of heart , increase cardiac output and stroke volume.
Question 30 Not yet answeredPoints out of 2.50Flag question Question text A decrease in parasympathetic stimulation...
Question 10 Not yet answered Points out of 2.oo P Flag question Which describes ventricular fibrillation? Select one or more: a. disorganized contraction of the ventricles b. atria contracting faster than ventricles c. disorganized contraction of both atria and ventricles d. right ventricle contracting faster than left ventricle
Select the right answer Question 1: Carvedilol is an example of a beta-adrenergic blocker a) True b) False Question 2: Glyceryl trinitrate is available in which of the following dosage forms? a) Sublingual Tablet b) Transdermal patch c) Sublingual spray d) all of the above Question 3: ACE inhibitors are useful in treating hypertension by reducing the levels of the powerful vasoconstrictor angiotension II. The dry cough associated with their use in some patients occurs due to : a) Inhibition...
Which one of the following would NOT be observed after administration of phenylephrine? a) Increase in TPR b) Increase in stroke volume c) Decrease in heart rate d) Decrease in AV conduction e) Reduction in sympathetic nerve stimulation to the heart
select the right answer: question: Drugs with a positive inotropic effect: a) increase heart rate b) decrease heart rate c) increase force of cardiac contraction d) decrease force of cardiac contraction
Question 6 Which of the following is NOT a property of a healthy heart? a) The contractile cells operate on the ascending limb(le.left side of the length-tension curve b) Stroke volume increases with increasing volume that enters during diastole. c) During exercise, sympathetic stimulation of the heart increases contractility, d) Norepinephrine creates an increase in the twitch duration of contractile cells e) None of the above are unhealthy characteristics.
Course Home <Lec Q Ch 14,15 Chapter 14 Question 138 Part A Drugs known as calcium channel blockers can be used to e increase blood pressure. . decrease the force of cardiac contraction. constrict the coronary arteries increase sympathetic stimulation of the myocardium. increase stroke volume. Submit Request Answer Provide Feedback
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The foreign exchange rate is defined as the Question 64 Not yet answered Points out of 100 Remove flag Select one: © A. volume of the world currencies traded. B. equal to the amount of the current account deficit. C. equal to the amount of the capital account deficit. D. rate or the speed with which the currencies of the worlds are traded. E.price at which one currency exchanges for another. Other things remaining the same, as U.S. imports increase...
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> Question 42 1 pts forms a crossbridge with the thin filament during muscle contraction. Tropomyosin The myofilament The M line O Myosin The line Question 43 1 pts Cardiac output: O is equal to the heart rate multiplied by the stroke volume. O is the amount of blood pushed out of the heart in one heart beat, O is equal to the heart rate plus the strake volume is regulated only by the sympathetic division of the autonomic nervous...