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WorksheetsHEART AND CIRCULATORY SYSTEM
Total questions: 21
Worksheet time: 13mins
True or false:
Arteries always carry blood away from the heart.
True
False
True or false:
Arteries always carry oxygenated blood.
True
False
The blood in the vena cava is...
oxygenated, returning to the heart
deoxygenated, returning to the heart
oxygenated, leaving the heart
deoxygenated, leaving the heart
The entrance to the ascending aorta is guarded by
an atrioventricular valve
bicuspid valve
semilunar valve
tricuspid valve
During artrial systole, the ventricles are
in systole
in diastole
contracting
not filling
In the diagram below, which part of the tracing represents the contraction of the atria?
P
T
R
S
Which component of ECG cycle shows ventricular depolarisation?
P
QRS
T
U
What shows the time a signal is delayed at the AV nodes?
PR segment
ST segment
PR interval
QRS complex
