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WorksheetsEKG and Electrical Pathway of the Heart
Total questions: 20
Worksheet time: 10mins
If there is higher pressure in the aorta, there will be no movement of blood out of the ventricle
True
False
The function of the atrium
To collect blood
To pump blood to the lungs
To pump blood into systemic circulation
To pump blood to the heart muscle
The entrance to the ascending aorta is guarded by
an atrioventricular valve
bicuspid valve
semilunar valve
tricuspid valve
The only time when all of the valves in the heart are close is during
ventricular diastole
isovolumetric contraction
artrial systole
isovolumetric diastole
The opening of semilunar valves is due to
increased ventricular pressure
decrease ventricular pressure
increased aortic pressure
increase in artrial volume
If ventricular pressure is low, what will happen to the arterioventricular valves?
close
open
During artrial systole, the ventricles are
in systole
in diastole
contracting
not filling
During isovolumetric ventricular contraction
closure of semilunar valves
closure of AV valves
rushing of blood into ventricles
contraction of atrial musculature
The relation with ECG, during third heart sound,
coincides with R wave
coincides or after submit of T waves
between T & P wave
between P and Q wave
Aortic pressure at its peak during
arterial systole
isovolumetric contraction
ventricular ejection
isovolumetric relaxation
Which component of ECG cycle shows ventricular depolarisation?
P
QRS
T
U
One small square on ECG tracing paper _______
is 1 mm by 1 mm
represents 0.04 seconds
represent 0.1mV
In the diagram below, which part of the tracing represents the contraction of the atria?
P
T
R
S
In the 6 second strip below, the heart rate is
7
60
70
75
What shows the time a signal is delayed at the AV nodes?
PR segment
ST segment
PR interval
QRS complex
Where is V1 located?
4th intercostal space at the left margin of sternum
4th intercostal space at the right margin of sternum
5th intercostal space at mid clavicular line
3rd intercostal space at mid axillary lline
Name part of red
T wave
Q wave
R wave
S wave
Name the lead
aVF
aVR
aVL
aVS
Represents the early part of ventricular repolarisation
QT interval
PR interval
ST segment
This wave indicates repolarisation of ventricles
T waves
U waves
P waves
Q waves
