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```The Cardiovascular System
Session 19
Supplemental Instruction
Iowa State University
Course:
Instructor:
Date:
Cody
AN S 214
Dr. Selsby
3/5/13
10. Match each term with each definition, there may be more than one right answer for each
term:
Terms:
 Systole: C
 Diastole: J
 Stroke volume: B,E
 Heart rate: I
 Cardiac output: G,H
 Contractility: D
 Ejection Fraction: A
Definitions:
A. Stroke Volume/End-Diastolic Volume
B. Volume of blood pumped from one ventricle of the heart with each beat
C. Ventricular contraction
D. Contractile strength at a given muscle length, independent of muscle stretch and EDV
E. EDV-ESV
F. Degree of stretch of cardiac muscle cells before they contract (Frank-Starling Law)
G. Heart Rate (HR) x Stroke Volume (SV)
H. Volume of blood pumped by each ventricle in one minute
I. Number of beats per minute
J. Ventricular relaxation
11. For each event in the heart, not the measures of ventricular volume associated (or the source
of the incoming blood), to trace the changes in ventricular filling.
Contractile Event
EX: Ventricles complete
Contraction
Atrial Diastole
Atrial Systole
to contract
Ventricles Contract
Ventricles complete
contraction
Measures associated or
source of incoming blood
ESV
Values Associated
XXXXXXXXXXXX
XXXXXXXXXXXX
EDV
+ 30 mL
+ 40 mL
= 130 mL
SV
ESV
- 70 mL
= 60 mL
60 mL
Supplemental Instruction
1060 Hixson-Lied Student Success Center  294-6624  www.si.iastate.edu
12. For the figure below, describe the event
that is occurring during each of the phases
below the figure:
B, C, & D: P wave, stimulated by SA
node, atrial depolarization and
contraction
E: Impulse is delayed to the AV node
F: QRS complex, Ventricular
depolarization and contraction, atrial
repolarization hidden by QRS complex
G: Ventricular depolarization is
complete
H: T wave, ventricular repolarization
13. Describe each of the Electrocardiograms below:
Normal
Ventricular fibrillation
Junctional rhythms, No P wave
2nd degree heart block, Multiple P
waves with no QRS complex following, AV node not functioning correctly
Premature ventricular contraction
Asystole, Flat-line
```
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