Final answer:
The left ventricle generates greater ventricular systolic pressure due to the need to overcome higher resistance in the systemic circuit, supported by its thicker and stronger muscle compared to the right ventricle.
Step-by-step explanation:
Ventricular systolic pressure is greater on the left side of the heart because the left ventricle has to overcome higher resistance to pump blood into the systemic circuit which supplies the entire body.
The muscle of the left ventricle is much thicker and stronger than that of the right ventricle, as it needs to generate enough pressure to push blood through the aorta and into the vast network of systemic arteries. Though both ventricles pump the same amount of blood, called the stroke volume, the right ventricle encounters less resistance as it only has to send blood through the shorter pulmonary circuit to the lungs.