THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -The left ventricle has the thickest wall out of all the chambers. The left ventricle is responsible for pumping the blood towards the tissues of the heart.

Detailed explanation-2: -The myocardium is thickest in the left ventricle, as this chamber must create substantial pressure to pump blood into the aorta and throughout systemic circulation.

Detailed explanation-3: -The left ventricle free wall is composed of the area of the left ventricular wall not in contact with the interventricular septum and is not part of the apex. In an attitudinally correct position the free wall is lateral and posterior.