BION 3202

1
BION 3202

• Lecture 6. The ECG

2
Figure 14-17
3
Figure 14-18
4
Figure 14-19
5
What does the ECG look like?
6
Figure 14-20
7
Figure 14-21 - Overview (1 of 9)
8
Figure 14-21 (2 of 9)
9
Figure 14-21 (3 of 9)
10
Figure 14-21 (4 of 9)
14-21CorrelateECGHeart_3_L
11
Figure 14-21 (5 of 9)
12
Figure 14-21 (6 of 9)
13
Figure 14-21 (7 of 9)
14
The Author wants to wave her hands at this point.
Why is the T-wave concordant (Same direction) as
the QRS complex?
Figure 14-21 (8 of 9)
15
Figure 14-21 (9 of 9)
16
Figure 14-23a
17
Figure 14-23b
18
Figure 14-23c
19
Figure 14-23d
20
Abnormally slow conduction through the ventricles
would change the ____ in the ECG A) P wave B)
T wave C) QRS complex D) P-R interval E)
R-T interval
21
If the connection between the AV node and bundle
of His becomes blocked, A) the ventricles will
beat faster. B) the ventricles will beat more
slowly. C) the ventricular rate of contraction
will not be affected. D) the stroke volume will
increase. E) tachycardia will occur.
22
Draw an ECG with Right Bundle Branch Block (RBBB)
For the test Draw left bundle branch block and
explain why.
23
Student Presentations
24
Next Class Regulation of Heart Rate

• Chapter 14, pages 475-476