Final Answer:
Increased Afterload does NOT occur due to increased venous return to the heart.
So. the correct option is A.
Step-by-step explanation:
Afterload refers to the resistance the heart must overcome to eject blood during systole. Increased venous return enhances preload the filling of the heart before contraction but it doesnt directly impact afterload.
Afterload is mainly influenced by factors such as systemic vascular resistance.
While increased venous return can enhance stroke volume by optimizing preload it doesnt affect the pressure the heart must overcome to pump blood into the systemic circulation.
Understanding the concepts of preload and afterload in cardiac physiology provides insights into the factors influencing cardiac function. Preload is determined by factors affecting ventricular filling while afterload depends on the resistance the heart faces during ejection.
This knowledge is crucial in comprehending cardiovascular dynamics and can be beneficial in clinical settings especially when evaluating and managing heart related conditions.
So. the correct option is A.