How does the heart work? What does it do? What is it composed of? How do you examine it? This article offers cardiac anatomy and physiology in a nutshell. The heart is a complex organ that pumps blood ...

This is the first article in a new series on the anatomy and physiology of ageing. The series explores normal age-related changes that occur in the anatomy and physiology of the major organ systems ...

If you clench your hand into a fist, this is approximately the same size as your heart. It is located in the middle of the chest and slightly towards the left. The heart is a large muscular pump and ...

Heart rate is measured in beats per minute (bpm). During exercise the heart rate increases so that sufficient blood is taken to the working muscles to provide them with enough nutrients and oxygen. An ...