EXAM 2

Question 1

Label each;
Options:

Purkinje Fibers
SA-node
Bundle Branches
AV-node
Septum
Bundle of His (AV Bundle)

Answer 1

A: SA-node
B: AV-node
C: Bundle Branches
D: Purkinje Fibers
E: Bundle of His (AV Bundle)
F: Septum

Question 2

The correct sequence of the wave of depolarization that passes through the heart is:

1 = atrioventricular (AV) node

2 = sinoatrial (SA) node

3 = Purkinje fibers

4 = bundle of His

5 = bundle branches

Answer 2

2,1,4,5,3

SA node, AV node, Bundle of His, Bundle Branches,
Purkinje fibers

Question 3

Indicate the type of action potential (slow or fast response) is seen in the S-A node:

Answer 3

slow response

Question 4

An electrocardiogram is a record of

Answer 4

electrical impulse conduction through the heart

AND

extracellular recording of the sum of all the electrical activity of the heart over time