The bladder is able to expand as urine accumulates within it due to the presence of: 22:41 Biology Chapter 15 The bladder is able to expand as urine accumulates within it due to the presence of: A) rugae B) transitional epithelium C) segmentation D) pseudostratified epithelium E) sphincters Answer: b Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+