The nerve-like modified muscle in the right auricle is known as:

Which structure first generates an action potential?

If the tricuspid valve of a human heart is partially non-functional due to an injury to the chordae tendineae,which of the following will be immediately affected?

The nodal tissue located in the lower left corner of the right atrium is

The frequency of heartbeat in our body is maintained by:

The tricuspid valve is present at the origin of