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.
Although the culture was that of unknown American Indians, it has been conditionally named after the Olmecs, a small group of tribes that later lived in the area (11thâ14th centuries). The time of existence of the Olmec culture has not yet been definitely established. The cultureâs origin is dated by various researchers to the 15th to the eighth century. , and its demise to the first century. to the third century. The economy was based on fishing and slash-and-burn farming.