Final answer:
b) False
The statement is false; the renal veins form from a network of smaller veins within the kidney and join into a single renal vein that empties into the inferior vena cava, not from five or six veins.
Step-by-step explanation:
The statement that five or six veins join to form the main renal vein is false. In human anatomy, the renal veins are formed by the merging of smaller veins that trace the path of the arteries throughout the kidney. These smaller veins include the interlobar veins, which drain into the arcuate veins, and subsequent cortical radiate veins. Ultimately, the blood from these veins converges into a single renal vein for each kidney, which then empties into the inferior vena cava. Regarding the renal arteries, they arise directly from the aorta and segment into further branches like interlobar, arcuate, and cortical radiate arteries as they enter the kidney. Additionally, statements about the kidney stating that the renal veins join the superior vena cava would be incorrect as they actually join the inferior vena cava.