Once home, I googled autism awareness, bumper sticker, and entered a whole world of autism products. Bumper stickers, of course. But also tee shirts, jewelry, stickers (I am someone with autism), mugs. Eventually, I exited even more perplexed than I entered.
In general, the digestive system is controlled by both nerves and hormones. The nerves that control digestion are in the submucosa layer of the tissue and in between the muscle layers of the walls of the organ.
: the stomach & small intestine secrete a number of hormones that help regulate the digestive system. 3. Mechanical & chemical digestion. : breakdown of food into small units by smooth muscular action (mechanical) and smaller absorbable units by hydrolysis with digestive enzymes (chemical).