Matt Soniak. filed under: Big Questions, Origins. Like us on Facebook. If youâve ever seen the World Health Organization or American Medical Association logo, or the âstar of lifeâ on the side of an ambulance, you might have wondered what a snake wrapped around a stick has to do with those who fix what ails us.Well, that stick is the asklepian, or rod of Asclepius.iled under: Big Questions, Origins. Like us on Facebook. If youâve ever seen the World Health Organization or American Medical Association logo, or the âstar of lifeâ on the side of an ambulance, you might have wondered what a snake wrapped around a stick has to do with those who fix what ails us.
For the most part, the B vitamins are absorbed directly into the bloodstream in your stomach or small intestines. The exception is vitamin B-12, which must be bound to something called intrinsic factor for absorption.
Once these materials have been broken down, nutrient absorption can occur. As food is processed along the digestive tract, most of the nutrients are absorbed through the walls of the small intestines. The nutrients are carried into the bloodstream where they can travel to all parts of the body. Other substances that are absorbed during digestion include vitamins, water, and salt. Learn more about digestion: 1  Digestive System. 2  Pregastric Digestion. 3  The Esophagus.