ANATOMY

Detailed explanation-1: -Left ventricle. The walls of the left ventricle are thicker because they have to generate more pressure in order to overcome the resistance of the systemic circulation. It pumps oxygenated blood to the aorta which then transports the blood to all parts of the body.

Detailed explanation-2: -Left Ventricle. The left ventricle is the main powerhouse of the heart, having to pump blood all the way around the systemic circulation. Because of this it has the largest, most muscular walls of any of the chambers. In fact, it is three times as thick as the right ventricle.

Detailed explanation-3: -Because the left ventricle pumps blood over the much longer systemic path-way through the body, its walls are substantially thicker than those of the right ventricle (Figure 11.5), and it is a much more powerful pump.

Detailed explanation-4: -The myocardium is thickest in the left ventricle, as the left ventricle must create a lot of pressure to pump blood into the aorta and throughout systemic circulation. Cardiac muscle has a high density of mitochondria and a large blood supply, which keep it functioning continuously.

Detailed explanation-5: -Final Answer: Left ventricle of heart has the thickest wall.