Atria Ventricles

Atria	Ventricles
i.              Atria are the upper chambers of the heart. ii.            Atria are receiving chambers as they receive the blood. iii.           Atria have comparatively thinner walls. iv.           Superior and inferior vena cavae enter into right atrium. v.             Pulmonary veins enter into the left atrium.	i.              Ventricles are the lower chambers of the heart. ii.            Ventricles are driving chambers as they sent the blood the body. iii.           Ventricles have comparatively thicker walls. iv.           Pulmonary artery leaves from right ventricle. v.             Aorta leaves from the left ventricle.