What is the last structure in the sequence of urine flow?

The final structure in the sequence of urine flow is the urethra. Urine is produced in the kidneys, where it travels through the ureters to the bladder, where it is stored. Once the bladder reaches capacity and signals that it is time to expel urine, the urine flows through the urethra, which is the duct that carries urine out of the body. This makes the urethra the last part of the urinary system through which urine passes before it is excreted. Understanding this sequence is crucial in grasping how the human excretory system functions and the roles of each of these organs in the process.