What happens if the left atrium is full?

  • Thread starter Thread starter Molly
  • Start date Start date
M

Molly

Guest
That is when the blood comes from the lungs in the heart cycle...
What if it is full?
 
it cant be because the blood would move unto the left ventricle to allow the atrium to fill up with new blood. The AVN node located in the left atrium send signals to the SAN node in the septum (middle muscle area of heart) which keeps sending currents to the bundle of His, and to the purkyne fibres which control the heart beat and how the blood is pumped from one chamber to anothe, so all in all this cannot be possible unless any of these are not functioning properly. but i guess if this was possible, then the heart cycle would come to a hold adn blood would pass, the human wouldnt breathe and soon die as oxygen is not bein passed to its cells


hope this helps :)
 
That's impossible, it'll just keep pumping and turning into oxygen then into carbon dioxide?
 
When pressure in the left atrium is high enough (due to filling with blood), the mitral valve opens (this is in the floor of the left atrium, and opens into the left ventricle), and blood moves into the left ventricle.
 
it contracts and the next chamber the left ventricle dilates and the blood is pumped to the ventricle
 
Back
Top