How a healthy heart works, Heart and Stroke Foundation

Your heart is a muscle that works by contracting and relaxing to pump blood through your body. Learn more about how a healthy heart works from Heart & Stroke.

Circulatory system

How your heart works The Heart Foundation

The Heart: Anatomy and 3D Illustrations

Connecting people by driving innovation - About

How your heart works

Anatomy of the Human Heart - Physiopedia

British Heart Foundation - How does a healthy heart work?

How a healthy heart works, Heart and Stroke Foundation

Heart Disease in Canada

How a healthy heart works, Heart and Stroke Foundation