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WorksheetsTRANSPORT SYSTEM
Total questions: 20
Worksheet time: 15mins
Choose the correct order of the chambers through which deoxygenated blood flows in the human heart.
right atrium-----> right ventricle------> aorta
right atrium -----> right ventricle------> pulmonary artery
left atrium------> left ventricle------> aorta
left atrium-------> left ventricle-------> pulmonary artery
The sound ‘lub’ produced in the cardiac cycle occurs when both
semilunar valve close simultaneously
semilunar valve open simultaneously
atrioventricular valves close simultaneously
atrioventricular valves open simultaneously
name of the valve that separates right atrium from right ventricle.
tricuspid
aortic
mitral
pulmonary
The atria receive a signal to contract from which structure?
Septum
Purkinje Fibers
AV Node
SA Node
During ventricular systole
only the AV valves open
the semi lunar valves open and the AV valves close
only the semi lunar valves close
the semi lunar valves close and the AV valves open
The opening of semilunar valves is due to
increased ventricular pressure
decrease ventricular pressure
increased aortic pressure
increase in artrial volume
Which is the pace maker of the heart?
sinoatrial SA node
Purkinje fibers
atrioventricular AV node
atrioventricular AV bundle
bundle branches
During artrial systole, the ventricles are
in systole
in diastole
contracting
not filling
What is the valve between aorta and left ventricle?
Mitral valve
AV valve
Semilunar valve
Pulmonic valve
During atrial diastole
Both atria contract
Both ventricle relax
Both ventricle contract
Both AV valve open
Dup sound is produced when
AV valve opened
AV valve closed
Semilunar valve opened
Semilunar valve closed
Why is the delayed of impulse at AV node?
To ensure the atria completely empty before aorta contract
To ensure the ventricle fully contract before atrial diastole
To ensure atria completely empty before ventricle contract
To ensure impulse is transmitted from AV node to bundle of His
What happens during ventricle systole
Ventricle relax
Ventricle contract
Semilunar valve open
AV valve closed
AV valve is opened when
Ventricle relax
Ventricle contract
Atria relax
Atria contract
