because your blood needs to be spread through out your entire body or you will die
The heart has upper and lower chambers.
The lower chamber is the ventricle, and there are 2 upper chambers (they are known as atria).
The right atrium (upper chamber) and the right ventricle (lower chamber)
The Mitral Valve is located between the Left Atrium ( Left upper chamber) and the Left Ventricle (Left lower chamber)
The Mitral Valve is located between the Left Atrium ( Left upper chamber) and the Left Ventricle (Left lower chamber)
The AV valves separate the upper and lower chambers of the heart. The bicuspid valve is on the left, and the tricuspid on the right.
upper chamber and the lower chamber upper chamber consist the atrium while the lower chamber consist the ventricles
The Mitral Valve is located between the Left Atrium ( Left upper chamber) and the Left Ventricle (Left lower chamber)
The left atrium
These valves prevent backflow of blood, ensuring that it moves in one direction through the heart. This helps to maintain proper circulation and ensures that oxygen-rich blood is efficiently pumped to the rest of the body.
2, the atria is the upper chamber of the heart. since there is alower and upper chamber in the heart, and the upper part is the atria, do the math: four chamber divided in half (two lower and two upper and 2+2=4) equals two which gives the the number of atria!
The human heart has four chambers.The upper two chambers are called Atria and the lower two are called Ventricles