Career Description of an Echo Technician. Echocardiography is one of the specializations that may be chosen by an ultrasound technician. Professionals in this field use sound wave projectors to project sound into human tissue in a conical or rectangular beam.
In most people, the left side of the brain contains the person's language functions. The right side contributes to a number of functions, such as attention, memory, reasoning, and problem solving (all of which contribute to effective communication).
Human language has long been believed to be controlled by two primary sections of the left hemisphere of the brain, Broca's area and Wernicke's area.Each area was named for the 19th century physician who discovered its role in communication.uman language has long been believed to be controlled by two primary sections of the left hemisphere of the brain, Broca's area and Wernicke's area.