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Intrinsic Conduction System Heart

Total questions: 40

Worksheet time: 23mins

Name
Class
Date
1.

The pacemaker of the heart

a)

AV node

b)

SA node

c)

Bundle of His

d)

Bundle branches

2.

What does SA stand for?

a)

Sinoatrial

b)

Sinus attack

c)

Sanoatric

d)

Something awkward

3.

What is another word for AV bundle?

a)

Bundle of HIS

b)

AV node

c)

Pacemaker

d)

Purkinje Fibers

4.

Which is located within the walls of the ventricles?

a)

Purkinje fibers

b)

SA node

c)

AV node

d)

AV bundle and branches

5.
Which is the correct path of electrical impulses through the heart?
a)
SA → Purkinje Fibers → Bundle Branches → AV
b)
SA → AV → Bundle Branches → Purkinje Fibers
c)
AV → SA → Bundle Branches → Purkinje Fibers
d)
AV → Bundle Branches → SA → Purkinje Fibers
6.

Which is a pacemaker

a)

SA Node

b)

AV node

c)

AV bundle

d)

Purkinje Fibers

7.

A cardiac cycle is:

a)

ventricular relaxation

b)

ventricular contraction

c)

equivalent to 1 complete heart beat

d)

a heart attack

8.

What is the second step to heart contraction?

a)

Atria contract

b)

ventricles contract

c)

depolarization of SA node

d)

Impulse spreads throughout the atria

9.

Which is diastole

a)

Atria relax and fill

b)

Ventricles contract and empty

c)

Semilunar valves are open/ AV valves are closed

d)

Atria contract and empty

10.
Place the following in the correct order:
     1. atria contract
     2. AV node
     3. Bundle of His
     4. Purkinje fibers
     5. SA node
     6. ventricles contract
a)
5, 1, 2, 3, 4, 6
b)
2, 1, 5, 3, 4, 6
c)
5, 6, 2, 3, 4, 1
d)
2, 6, 5, 3, 4, 1
11.
The left and right ventricles contract after receiving electrical impulses from what?
a)
Purkinje Fibers
b)
The SA node
c)
Bundle Branches
d)
The NA node
12.

The heart is the size of:

a)

grapefruit

b)

orange

c)

fist

d)

countaloupe

13.

The cardiac conduction system is run by two nodes which are:

a)

sinoatrial, atrioventricular

b)

systolic, diastolic

14.

how much blood does the average human have?

a)

1 gallon

b)

7 liters

c)

4 liters

d)

5 liters

15.

What is the contraction phase of a hearbeat called?

a)

diastole

b)

sinoatrial

c)

systole

d)

atrioventricular

16.

also known as a heart attack

a)

IM

b)

IV

c)

IVPB

d)

MI

17.
 This triggers contraction in the atria
a)
SA node
b)
AV node
c)
QT node
d)
AV Bundles
18.
What is going on in the heart during the P wave
a)
SA node triggers depolarization in atria
b)
AV node triggers depolarization in ventricle, the main pumpung action
c)
Delay caused by the SA node
d)
Repolarization of the ventricle 
19.
What is going on in the heart during the R-wave or QRS complex
a)
SA node triggers depolarization in atria
b)
AV node triggers depolarization in ventricle, the main pumpung action
c)
Delay caused by the SA node
d)
Repolarization of the ventricle 
20.
What is going on in the heart during the T-wave
a)
SA node triggers depolarization in atria
b)
AV node triggers depolarization in ventricle, the main pumpung action
c)
Delay caused by the SA node
d)
Repolarization of the ventricle 
21.
What is going on in the heart during the P-R Interval
a)
SA node triggers depolarization in atria
b)
AV node triggers depolarization in ventricle, the main pumpung action
c)
Delay caused by the SA node
d)
Repolarization of the ventricle 
22.
These aid in spreading contraction signal to ventricles 
a)
SA Bundles 
b)
AV Bundles
c)
Nodal groups
d)
Heart Murphs 
23.
 This triggers contraction in the ventricle:
a)
SA node
b)
AV node
c)
QT node
d)
AV Bundles
24.
 This triggers contraction in the atria:
a)
SA node
b)
AV node
c)
QT node
d)
AV Bundles
25.
What is going on in the heart during the QRS wave?
a)
SA node triggers contraction in atria
b)
AV node triggers contraction in ventricle, the main pumpung action
c)
Delay caused by the SA node
d)
Repolarization of the ventricle 
26.
What is going on in the heart during the T-wave?
a)
SA node triggers contraction in atria
b)
AV node triggers contraction in ventricle, the main pumpung action
c)
Delay caused by the SA node
d)
Relaxation of the ventricle 
27.
Why are the walls of the left ventricle thicker than that of the right ventricle?
a)
The left ventricle must force blood into all the capillaries of the lungs 
b)
the left ventricle doesn't skip leg day
c)
This is false, the walls of the right ventricle are thicker
d)
Blood from the left ventricle is pumped throught the entire body 
28.
These structures aid in spreading contraction signal to ventricles:
a)
SA Bundles 
b)
AV Bundles
c)
Nodal groups
d)
Heart Murphs 
29.
On this diagram, the Purkinje fibers are located at...
a)
F
b)
G
c)
H
d)
I
30.
On this diagram, the AV node is located at...
a)
A
b)
I
c)
C
d)
D
31.
The place where the electrical current starts, and which is considered the heart's pacemaker, is the...
a)
sinoatrial node 
b)
right atrium
c)
atrioventricular node 
d)
left ventricle
32.
Order the phases an action potential travels in the conduction system
a)
SA node--> AV bundle branches--> AV node--> Purkinje fibers
b)
SA node--> AV node--> AV bundle branches-->  Purkinje fibers
c)
Av bundle branches--> AV node--> SA node--> Purkinje fibers
d)
Purkinje fibers--> SA node--> AV node--> AV bundle branches
33.
The SA Node generates an impulse about ____ times per minute.
a)
50
b)
75
c)
125
d)
100
34.
Atrial Systole occurs...
a)
P Wave to start of QRS Complex
b)
QRS Complex To T Wave begins
c)
QRS to End of T Wave
d)
T Wave to Next P Wave
35.
Venticular Systole occurs...
a)
P Wave through PR Segment
b)
QRS Complex To T Wave begins
c)
QRS to End of T Wave
d)
T Wave to Next P Wave
36.
Ventricular Diastole occurs...
a)
T Wave to start of Next QRS Complex
b)
QRS Complex To T Wave begins
c)
QRS to End of T Wave
d)
T Wave to Next P Wave
37.
#1 Represents...
a)
QRS Waves
b)
P Wave
c)
T Wave
d)
Z Wave
38.
#2 Represents...
a)
QRS wave
b)
T Wave
c)
P wave
d)
fibrilation
39.
#3 Represents...
a)
qrs wave
b)
t wave
c)
p wave
d)
z wave
40.
What is going on in the heart during the P wave?
a)
SA node triggers contraction in atria
b)
AV node triggers contraction in ventricle, the main pumpung action
c)
Delay caused by the SA node
d)
repolarization of the ventricle 

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