WorksheetsPhysiology of CVS
Total questions: 10
Worksheet time: 6mins
The pacemaker of the heart is also known as the:
SA node
AV node
Purkinje fibres
Bundle of His
The average length of a cardiac cycle is about:
8 seconds
0.8 second
0.16 second
0.08 second
Which part of the ECG record represents the atrial depolarization?
P wave
T wave
R wave
QRS complex
During ventricular systole, which of the following occurs?
Atrioventricular valves close and semilunar valves close
Atrioventricular valves close and semilunar valves open
Atrioventricular valves open and semilunar valves are open
Atrioventricular valves open and semilunar valves close
The complete cardiac cycle is the:
contraction of the atria and relaxation of the ventricles only
events that occur from the beginning of one heartbeat to the beginning of next beat
contraction and relaxation of the ventricles
circulation of blood in the lungs and body systems
Diastole refers to what action?
Relaxation
Pumping
Contraction
Depolarization
The 'Lub' sound of the heart is caused by:
atrioventricular valves closing
semilunar Valves closing
blood flowing through the pulmonary trunk
blood flowing down into the ventricles
The mean arterial pressure (MAP) in a patient whose diastolic pressure is 66mmHg and systolic pressure is 102 mmHg is
(102+66)/3
1/3 x 66 + 2/3 x 102
102 - 1/3 (102 - 66)
66 + 1/3 (102 - 66)
Which of the following terms means the difference between systolic and diastolic blood pressure?
Mean arterial pressure
Pulse pressure
Heart rate
Total peripheral resistance
Which of the following is a long-term control of blood pressure?
Aldosteron
Baroreceptor reflex
Chemoreceptor reflex
Sympathetic nervous system
