What are few basic differences between right and left atria?
1 Answer
Nov 30, 2017
............Right atria.............................................Left atria.......................
- Receives deoxygenated blood.........Receives oxygenated blood
- There are three inlets*..........................There are four inlets#
- Pumps blood to right ventricle..........Pumps blood to left ventricle
- Tricuspid valve guards outlet.............Bicuspid valve guards outlet
- Pacemaker is embedded in wall.......No pacemaker is present
*Venous blood enters right atrium through inferior vena cava, superior vena cava and also from coronary sinus.
#Pulmonary veins from two sides of lungs drain in left atrium: in human there are two from each side, hence four pulmonary veins.
All inlets to the two atria could be seen from dorsal surface of heart .
