NUTR 125 Lecture Notes - Lecture 7: Gastrointestinal Tract, Small Intestine, Leptin
Document Summary
There is not guarantee that a processed foods will meet the needs of your ancient body. You need to learn how your body works, what it needs, and how to select foods to meet its needs, i. e. energy, essential nutrients and water. The human body is made of trillions of cells. Inborn error of metabolism: a genetic variation present from birth that may result in disease: pku/phenylketonuria, ppl with pku can"t digest phenylalanine, less consumption. Cells work in cooperation to support the whole body. Cells need: energy, oxygen, nutrients (essential), water. Cells are organized into tissues that perform specialized tasks. Organs work together to form body systems like: cardiovascular system which is made up of the heart, lungs, and blood vessels. Nerve cells in our stomach and small intestine will relay data to an area in our brain called the hypothalamus. The hypothalamus regulates hunger and thirst in our bodies. Hormones are chemical messengers secreted into the bloodstream by glands.
