What is the role of the atria?

Answer 1

The atrium and ventricles don't DO anything, they're just chambers in the heart. The heart is made up of four chambers - the right atria, the right ventricle, the left atria, and the left ventricle. Blood passes through these four chambers and then is pumped out to wherever it needs to go.

Atrium: is the chamber in the heart designed to receive the blood from the body tissues.

Ventricle: where the atrium empties into; Muscular chamber designed to pump the blood forward through the arteries.

Answer 2

The right atrium receives blood from the great veins which come from the upper (neck, head, hands) and lower part of the body (through superior vena cava and the inferior vena cava) . As it fills up with blood and pressure builds up, the atrium contracts, opening the tricuspid valve making the right ventricle fill up with blood.

At the same time, the left atrium which receives blood from the lungs (through the right and left pulmonary veins) fills up with blood, contracts and when the bicuspid (or mitral) valve opens the left ventricle also fills with blood.

Then, the ventricals contract and the blood leaves the heart through the semilunar valves.

Answer 3

The role of the atria is to receive oxygen poor and oxygen rich blood from the body and lungs. It then pumps the blood to other parts throughout the body. Oxygen rich blood flows in through the left atrium and is pumped through the mitral valve into the left ventricle. On the other side the right atrium pumps oxygen poor blood into the right ventricle through the tricuspid valve.

Answer 4

The atria both receive blood returning from the body and assist with ventricular filling. The right atrium receives blood from the systemic circulation, and the left from the pulmonary circulation.

Answer 5

To collect blood from other parts of the body before it pumps it to the ventricles.

Answer 6

1. The atria are chambers that receive blood that returns to the heart.

Answer 7

the main job of the heart atria is to pump blood from itself (the atria) to the ventricles below it

Answer 8

right atrium receives blood from the body then pushes it into the right ventricle. the left atrium receives blood from the lungs and pushes it into the right ventricle. that's about it.