An ultrasound scan, also referred to as a sonogram, diagnostic sonography, and ultrasonography, is a device that uses high frequency sound waves to create an image of some part of the inside of the body, such as the stomach, liver, heart, tendons, muscles, joints and blood vessels.
Name. The name Olmec means rubber people in the Aztec 's language: Nahuatl. It was the Aztec name for the people who lived in this area at the much later time of Aztec dominance. Ancient Mesoamericans, spanning from ancient Olmecs to Aztecs, extracted latex from Castilla elastica, a type of rubber tree in the area.t was the Aztec name for the people who lived in this area at the much later time of Aztec dominance. Ancient Mesoamericans, spanning from ancient Olmecs to Aztecs, extracted latex from Castilla elastica, a type of rubber tree in the area.
David L. ThornMarch 28, 2003A.1. The Olmec civilization was the most prevalent group in Mesoamerica during the time period of 1200 BC to 400 BC. The chronology for the Olmec civilization for many researchers is still controversial, and this is largely due to problems relating to the dating of artifacts.hough the Olmec were a major influence in the area, the archaeological evidence indicates that the Maya lowlands evolved on their own path, with only a small degree of influence from the Olmec. The path of evolution for the Maya is very similar to the evolutionary path followed by the Olmec civilization.