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).
This area, on the left side, contains a speech center which turns all these thought process into muscle movements. The movements are complex. So if we are talking about what side of the brain controls the actual speech movements that generate the sounds, it is the speech center in the motor area which is in the left hemisphere of the brain.