sinus node; sinoatrial node; SA node

Function

• under normal conditions, the pacemaker function of the heart resides in the sinus node.
• it is located at the junction of the superior vena cava & the right atrium
• Bachmann's bundle? carries impulse from sinus node to left atrium

More general terms

• heart structure
• sinus

Additional terms

• sinus rhythm

Component of

• cardiac conduction system