No Squirrel - I have spent quality time reading, and re-reading you reply. Thisnurse started me off thinking more deeply by mentioning osmosis, and I often overlook that osmosis occurs in every cell of the body. (right?) It's quite a bit to consider happening all at once.
YOU DID NOT BORE ME!!!!!!!!! I can listen to you talk for as long as you like about this subject. I wish I had your knowledge.
I have learned about facilitated diffusion, and is there some way the hormones associated with water retention (and expulsion) turn on when you start to drink water? Do they "kick on" by a routine, or merely by you thinking about drinking water?
Water is seperate from facilitated diffusion, right? Water is just plain old osmosis, going from a higher to a lower concentration (gradient). This idea seems easy to grasp, but when the entire picture is animated in my mind, some of the details get hazy. Like, I held on too tightly to the idea that peristalsis is a closed system. The energy that keeps us alive and kicking flows from the GI tract at all times, so it is NOT closed at all. (duh)
I am well aware of NaCl, and how NaCl can effect osmosis and diffusion, but the hormones, ADH and aldosterone...I know they regulate hydration too, but I want to see how, and not just remember (<) or (>) signs. What does a group of stomach cells look like when the stomach is full of water and certain hormones are present. If you know of any movies that visualize water absorption in the body, let me know. After learning about DNA, RNA, mitosis and trancription/translation I felt somewhat at a loss. I knew about it, saw still pictures of the process, but could not fully imagine what is going on with only A&P's and microbiology classes under my belt. Then I got serious and started searching for images and found
and it all went click, click, click in my hippocampus like you wouldn't believe. :-) I hafta go to the campus to view this, because my cluncker is way too slow to process the animations.
Thank you for introducing phytochemicals which I learned are, technically, any chemicals produced by a plant, but this term usually refers to certain plant chemicals (such as carotenoids) that researchers believe may impart health benefits such as better protection from cancer. Now I am on to this as well.
Thank you again, and please go off on any part of water absorption or nutrition you like because I love to listen and learn. I too can go on and on. :-)