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.
The word Olmec also refers to the rubber balls, used for the ancient ball game of Olmec creation. The Olmec called themselves the Xi, the same name that they used when they were in China. They often depicted themselves with colossal heads, some of which were deformed, and whose meaning is unknown.When evidence of the Olmec was first discovered (in 1863), scientists at first didn't know what to make of them.he Olmec called themselves the Xi, the same name that they used when they were in China. They often depicted themselves with colossal heads, some of which were deformed, and whose meaning is unknown. When evidence of the Olmec was first discovered (in 1863), scientists at first didn't know what to make of them.