Final answer:
The nephron is structured with a long tubule and a single loop. It consists of the glomerulus, renal tubule, and associated capillary network.
Step-by-step explanation:
The structure of the nephron consists of a long tubule with a single loop. The three main parts of the nephron are the glomerulus, the renal tubule, and the associated capillary network originating from the cortical radiate arteries.