CVS(Cardio Vascular System)

 Introduction

The heart is a roughly cone-shaped hollow muscular organ. It is about the size of the owner's fist. It weighs heavier in men(about 310 g).

Position

The heart lies in the thoracic cavity in the mediastinum between the lungs

It lies obliquely, a little more to the left than the right, and presents a base above, and an apex below. The apex is about 9 cm to the left of the midline at the level of the 5th intercostal space, i.e. a little below the nipple and slightly nearer the midline(apex beat)

The base extends to the level of the 2nd rib.