Management of ACS for the ALS Provider

Atrium (Atria)

These are the thin-walled upper chambers of the heart; Separated by inter-atrial septum; Blood returns from the body to the right atrium; Blood returns from the lungs to the left atrium; The atria provide approximately 20% of the “kick” in assisting ventricular filling. [25, 27] interactimages/Depositphotos.com Digital file.