Question

Question 30

Not yet answeredPoints out of 2.50Flag question

Question text

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

Not yet answeredPoints out of 2.50Flag question

Question text

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

Not yet answeredPoints out of 2.50Flag question

Question text

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

Not yet answeredPoints out of 2.50Flag question

Question text

Wichtbart الب لے المال In the above EKGs, A is normal

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

Not yet answeredPoints out of 2.50Flag question

Question text

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

Not yet answeredPoints out of 2.50Flag question

Question text

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

Not yet answeredPoints out of 2.50Flag question

Question text

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

Not yet answeredPoints out of 2.50Flag question

Question text

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

Not yet answeredPoints out of 2.50Flag question

Question text

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

Not yet answeredPoints out of 2.50Flag question

Question text

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

Not yet answeredPoints out of 2.50Flag question

Question text

The best treatment for tachycardia

Select one:

a. Epinephrine

b. Atropine

c. Alpha Blocker

d. Beta Blocker

Answer 1

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.