Final answer:
The example of extravascular resistance to fluid distribution is 'b. Edema', where excess tissue fluid accumulates around cells, frequently due to increased capillary pressure pushing fluids into the interstitial space.
Step-by-step explanation:
An example of extravascular resistance to fluid distribution is edema. Edema occurs when excess tissue fluid accumulates around cells, often due to increased pressure that promotes the flow of fluids out of the capillaries and into the surrounding tissues. Conditions like arteriosclerosis can also contribute to increased resistance within vessels leading to hypertension, but edema is specifically a result of fluid shifting from the vascular to the extravascular space.
Arteriosclerosis, on the other hand, represents an increase in intravascular resistance and is a leading cause of hypertension and coronary heart disease due to reduced compliance of the arteries. In arteriosclerosis, the vessel cannot expand as effectively, leading to increased pressure and resistance within the vessel.
The correct option in this case is 'b. Edema', as it explicitly involves the distribution of fluid to the extravascular space, resulting from factors like increased venous pressure or decreased osmotic pressure within the vessels.