_____  epithelial tissue accommodate changes in fluid volume of the organs and is found only in the renal system.

The epithelial tissue that accommodates changes in fluid volume of the organs and is specifically found only in the renal system is called transitional epithelium.

Explanation:

Transitional epithelium is unique among epithelial tissues due to its ability to stretch and recoil. This property is essential for organs such as the bladder, ureters, and parts of the urethra, which need to expand and contract based on the volume of urine they hold.

The structure of transitional epithelium is characterized by several layers of cells that can shift from a cuboidal shape when the tissue is relaxed to a flatter, more squamous shape when stretched. This adaptability allows for the organ to manage varying fluid volumes without compromising its integrity or functionality.

In summary, transitional epithelium is integral to the renal system, providing the necessary flexibility to accommodate fluid fluctuations, thus playing a vital role in urinary tract function and overall homeostasis.