Human Bio Unit 1 - Electrocardiogram Flashcards
0
Q
What does the P wave show?
A
Electrical activity during atrial systole
1
Q
What is a ECG?
A
Where electrodes are placed on the skin over opposite sides of the heart
Measures the electrical potential
Maps our heart rate
2
Q
What does the GRS complex show?
A
Electrical activity during Ventrical systole
3
Q
What does the T wave show?
A
Ventricular depolarisation
4
Q
What does ventricular depolarisation mean?
A
Recovery of the ventricle walls
5
Q
What does the Q-T interval show?
A
Contraction time
6
Q
What does the T-P intervals show?
A
Ventricles relaxed and filling with blood
7
Q
What indicates a heart attack?
A
Elevation of the St section
8
Q
What does a deep S wave show?
A
Ventricular hypertrophy
9
Q
What is ventricular hypertrophy?
A
Increases in muscle thickness of the ventricles
10
Q
Look at picture of ECG
A
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