“It’s time for Name That Organs’ bonus trivia round! With your host, Ana Tomy!”
“Thanks Fizzy Ology! Let’s get to our bonus question: Please describe the pathway involved for formation and excretion of urine.”
Explanation
Answer: A - Urine begins its formation as the nephrons filter and remove waste from the blood stream. The urine is drained from the kidney via the ureters to the bladder, a urine holding tank. When the bladder becomes full enough, nerves signal the need to urinate, the urethra is the tube that connects the bladder to the outside of the body, and voilà, urination!