Phoniatrics is the medical research and treatment of organ

Organ (anatomy)

In biology, an organ is a collection of tissues joined in structural unit to serve a common function. Usually there is a main tissue and sporadic tissues . The main tissue is the one that is unique for the specific organ. For example, main tissue in the heart is the myocardium, while sporadic are...

s involved with speech production. In general terms the speech organs means the mouth

Mouth

The mouth is the first portion of the alimentary canal that receives food andsaliva. The oral mucosa is the mucous membrane epithelium lining the inside of the mouth....

, throat (larynx

Larynx

The larynx , commonly called the voice box, is an organ in the neck of amphibians, reptiles and mammals involved in breathing, sound production, and protecting the trachea against food aspiration. It manipulates pitch and volume...

), the vocal cords and lung

Human lung

The human lungs are the organs of respiration in humans. Humans have two lungs, with the left being divided into two lobes and the right into three lobes. Together, the lungs contain approximately of airways and 300 to 500 million alveoli, having a total surface area of about in...

s. Problems treated in phoniatrics include dysfunction of the vocal cords, cancer in the vocal cords or larynx, incapability to control the speech organs properly (speech disorder

Speech disorder

Speech disorders or speech impediments are a type of communication disorders where 'normal' speech is disrupted. This can mean stuttering, lisps, etc. Someone who is unable to speak due to a speech disorder is considered mute.-Classification:...

s), and vocal loading

Vocal loading

Vocal loading is the stress inflicted on the speech organs when speaking for long periods.- Background :Of the working population, about 15% have professions where their voice is their primary tool. That includes professions such as teachers, sales personnel, actors and singers, and TV and radio...

related problems.