Answers. Relevance. Rating Newest Oldest. Best Answer: a Spanish term that was formerly used in the Spanish Empire to designate people of mixed European (Spaniard) and Amerindian ancestry living in the region of Latin America.[1] The word originated from the Romance language / Latin word Mixticius, meaning mixed.
For centuries, lead toxicity has been one of the most significant preventable causes of neurologic morbidity from an environmental toxin. A heavy metal, lead is ubiquitous in our environment but has no physiologic role in biological systems.
LEAD EXPOSURE BLOOD TEST. Lead is a toxic metal that is naturally occurring in the earthâs crust. Lead and lead compounds have been used in manufacturing compounds such as paint, fuel, batteries and cosmetics. Some of the most common sources of lead exposure in the United States come from Lead-based paints found in older homes, drinking water and pottery or crystals used for eating. Occupational exposure to lead in the workplace can also occur.