One of two upper chambers in the heart that receives blood from the circulatory system.- Atrium (heart)
357 related topics
The inferior vena cava is a large vein that carries the deoxygenated blood from the lower and middle body into the right atrium of the heart.
One of the four heart valves.
It has two cusps or flaps and lies between the left atrium and the left ventricle of the heart.
The superior vena cava (SVC) is the superior of the two venae cavae, the great venous trunks that return deoxygenated blood from the systemic circulation to the right atrium of the heart.
Division of the circulatory system in all vertebrates.
This blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle.
On the right dorsal side of the mammalian heart, at the superior portion of the right ventricle.
The function of the valve is to prevent back flow (regurgitation) of blood from the right ventricle into the right atrium during right ventricular contraction: systole.
The pulmonary veins are the veins that transfer oxygenated blood from the lungs to the heart.
The largest pulmonary veins are the four main pulmonary veins, two from each lung that drain into the left atrium of the heart.
Atrial septal defect (ASD) is a congenital heart defect in which blood flows between the atria (upper chambers) of the heart.
The sinoatrial node (also known as the sinuatrial node, SA node or sinus node) is a group of cells known as pacemaker cells, located in the wall of the right atrium of the heart.
One of two large chambers toward the bottom of the heart that collect and expel blood towards the peripheral beds within the body and lungs.
The blood pumped by a ventricle is supplied by an atrium, an adjacent chamber in the upper heart that is smaller than a ventricle.
Artery in the pulmonary circulation that carries deoxygenated blood from the right side of the heart to the lungs.
The mean pressure is typically 9–18 mmHg, and the wedge pressure measured in the left atrium may be 6–12 mmHg.