What features of the physiology and anatomy of a person allow him to use spoken language for communication?

1) Strong development of the forebrain.
2) The presence of speech centers in the cerebral hemispheres of the forebrain.
3) The special structure of the larynx and the presence of vocal cords.
4) The presence of the submental protrusion of the lower jaw and the muscles involved in the formation of sounds

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.