Factors that increase interstitial fluid pressure (IFP) will have what effect on lymph flow?

Factors that increase interstitial fluid pressure (IFP) typically lead to an increase in lymph flow. Lymphatic vessels have walls that are highly permeable to proteins and fluid. When interstitial fluid pressure rises, it creates a driving force that enhances the filtration of fluid into the lymphatic system. This phenomenon is particularly important because the lymphatic system plays a crucial role in maintaining fluid balance within the body by absorbing excess interstitial fluid.

Increased IFP can also help open the initial lymphatic capillaries, allowing more interstitial fluid, proteins, and even immune cells to be absorbed into the lymphatic system. This increased capacity to collect excess fluid means that lymph flow will be elevated. Thus, under conditions of increased interstitial fluid pressure, the lymphatic system is effectively encouraged to transport more fluid, improving drainage and reducing edema.

This relationship underlines the significant role that interstitial fluid pressure plays in lymphatic physiology and fluid homeostasis within the body.