However, note that other causes of the symptom 'Muscle mass loss' may be possible. Research the causes of these symptoms that are more broader types of symptom than Muscle mass loss: Muscle atrophy (351 causes)
intrinsic meaning, definition, what is intrinsic: being an extremely important and basic characteristic of a person or thing: . Learn more.
1. intrinsic factor-a substance produced by the mucosa of the stomach and intestines that is essential for the absorption of vitamin B12; lack of intrinsic factor can result in pernicious anemia.factor-anything that contributes causally to a result; a number of factors determined the outcome.Translations.. intrinsic factor-a substance produced by the mucosa of the stomach and intestines that is essential for the absorption of vitamin B12; lack of intrinsic factor can result in pernicious anemia.