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).
Aphasia often arises as a result of damage to Broca's area or Wernicke's area. Aphasia is a language disorder that results from damage to portions of the brain that are responsible for language. For most people, these are parts of the left side (hemisphere) of the brain.