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 poisoning occurs when lead is ingested. Breathing in dust that contains lead can also cause it. You cannot smell or taste lead and itâs not visible to the naked eye. In the United States, lead used to be common in house paint and gasoline.