Final answer:
Accessory and Segmental Renal Arteries are end arteries without collateral circulation, making them prone to ischemia if obstructed. The renal blood supply involves a series of branching arteries that start at the renal hilum and end at the nephrons.
Step-by-step explanation:
Accessory Renal Arteries, just like the Segmental Renal arteries, are indeed end arteries. This means that they do not have collateral circulation; if an end artery is blocked, the tissue area that it supplies will suffer from ischemia because there is no alternative blood flow route.
Blood enters and exits the kidney at the renal hilum, and the renal blood supply starts with the branching of the aorta into the renal arteries. The renal arteries end with the exiting of the renal veins to join the inferior vena cava. Each segmental renal artery formed by the splitting of the renal arteries splits again into interlobar arteries and enters the renal columns. These arteries then split to form arcuate arteries, from which cortical radiate arteries radiate out and branch into many afferent arterioles that enter the capillaries supplying the nephrons.
Therefore, the correct response to whether Accessory and Segmental Renal Arteries are end arteries and prone to ischemia is d. False; they are prone to ischemia.