This gives the atria time to squeeze blood into the ventricles before they fire. The impulse is then carried by way of the AV bundle and the right and left bundle branches to the apex of the heart and then spread through the walls of the ventricles towards the base of the heart.
Microculture is a card-based group game that embodies the behavior of our human microbiome. It is also an icebreaker game that relies on a simple form of social interaction. The idea is to create correlations between the needs of the culture and the actual personal preferences and cultural backgrounds of the players.
Lastly, the macrosystem is the culture in which an individual lives, including ethnicity and socioeconomic status. Bronfenbrenner also says that there is a chronosystem which encompasses all four systems, in other words the cumulative experiences an individual has in their lifetime.