Cardiovascular system

Question 1

what is the conduction system?

Answer 1

Ensures chambers of the heart conduct in a coordinated manner

Question 2

Describe the process of the conduction system

Answer 2

• Sa nodes, repeatedly repolarise to threshold, triggers the action potential
• AV nodes, slows allowing atrium to empty into ventricles
• Bundle of HIS, Action potential is conducted from atrium to ventricles
• Left and right branches
• Purjinke fibres, rapidly conducts action potential to set rhythm for contractions