| The loop of transitional epithelial cells somehow did not relax they are |
stretched which causes the transitional loop layer to have less depth due to less cells (full bladder).
| The surface cells outside the loop are relaxed which causes the cells to bunch up |
and cause the transitional layer to be deeper (empty bladder).
| Immediately below the transitional cells is the subserous layer made of fibrous tissue with many |
elastic fibers which flexes with the stretching and relaxing of the transitional epithelial above.