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The speech mechanism explains how the, sounds are produced in the speech organs., The organs of human body that are involved, in the production of speech sounds , either, directly or indirectly are called ‘Organs of, Speech’. These organs of speech can be, divided into the groups. Based on these, groups , the systems involved in speech, mechanism are divided into three systems as, a whole in production of sounds.

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The system of speech mechanism are as, follow:, , Respiratory System, 2. Phonatory System, 3. Articulatory / Pulmonic, System, 1.

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This system comprises the lungs , the, muscles of the chest and the wind, pipe. These organs do the functions of, providing the required air for sound, production by breathing in and, releasing it out.. The lungs serves as a, source of air and the source of energy, for production of speech is generally, the air stream coming out of the lungs.

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The phonatory system consists of, larynx. The larynx is the little box that, is called the “Adam's Apple” situated, at the top of the wind pipe. The air, from the lungs comes out through wind, pipe and the larynx. In the larynx ,, there are situated a pair like structure, called “ VOCAL CORDS”. The vocal, cords can be opened and closed . The, vibration of vocal cords is very, significant speech.

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This system comprises the, nose , teeth , tongue , and, roof of the mouth and the lips., The place and manner in, which the sounds are, produced and categorised is, decided by this articulatory, system.

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, , PHARYNX :, , Extending from the, top of the larynx to the hindermost, part of the tongue is the pharynx. By, the movement of the back of the, tongue by the position of the soft, palate , and the lowering of the, larynx , the quality of the sound, produced.

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, , , , LIPS : The lips play an important part in the, production of certain sounds. It can assume, various positions for the different vowel and, consonant sounds. They are closed , spread ,, open rounded and closed rounded., TEETH: Certain consonants are produced, with the help of the teeth , the upper jaw ,, and the whole area called the roof of the, mouth , comprising the teeth ridge etc.

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, , , , , , TEETH-RIDGE : The teeth ridge is the convex, part of the roof of the mouth lying immediately, behind the upper teeth., HARD PALATE: This is the name given to hard, bony , concave surface lying immediately behind, the teeth ridge., SOFT PALATE: The soft palate is the muscular, part at the back of the roof of the mouth. It sits, behind the hard palate, which is the bony part of, the roof of the mouth. The palates play, important roles in swallowing, breathing, and, speech.

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, , , , VOCAL CORDS: The vocal cords (also, called vocal folds) are two bands of smooth, muscle tissue found in the larynx (voice box)., The vocal cords vibrate and air passes, through the cords from the lungs to produce, the sound of your voice., TONGUE: The tongue is the most important, articulator of speech. This muscle is, extremely strong, as it must move food, around in our mouths as we chew. Its helps, to maintain our speech ability.

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, , , , UVULA: Small piece of flesh that hangs, from the top of the inside of the mouth just, above the throat., GLOTTIS: It is the combination of vocal, folds and space in between the folds. As the, vocal folds vibrate , the resulting vibration, produces a “ buzzing” quality in the speech, called “voice”