Tubes

In keeping with the theme of my last blog I am continuing to analyze and be self-aware of my current body structure and function.
It seems that our bodies are filled with tubes and passageways to carry substances from here to there. It is like a vast network of superhighways that can carry cargo at insane speeds and for many different purposes.
Some on these tubes have multiple functions. Five minutes ago I was so amazed as to how my urethra could carry two different substances but only under two very specific conditions. I am so glad we have tubes in us.

BR