The organs of speech

language and linguistic

1. N.NISHADEENU.,D.ted.,MA.,B. ed ., Mphil ., ASSISTANT PROFESSOR DEPARTMENT OF ENGLISH BON SECOURS COLLEGE FOR WOMEN THANJAVUR.

2. The organs of speech Language and Linguistics

3. Introduction The organs of speech have function other than production of speech called the organs of speech. The lungs, the vocal cords, the tongue, the teeth and the lips are called as the organs of speech .

4. The organs of speech

5. Organs of speech division The respiratory system The phonatory system The articulatory system

6. Organs of speech division Respiratory system Phonatory system Articulatory system

7. Respiratory system : C omprises of Lungs The muscles of chest Wind pipe The phonatory system : Comprises of Larynx

8. The articulatory system : The nose The teeth The tongue The roof of the mouth The lips

9. The respiratory system Lungs Lungs act as bellows and produce the breath stream Lungs has alveoli, bronchioles, bronchi. Air from the outer atmosphere is called inspiration and expiration the air that we breath During expiration most speech sound are produced

10. The Lungs

11. The respiratory system Wind pipe Air is drawn in and forced out through the tube known as wind pipe

12. The Phonatory system Larynx It is to modify the air stream. The front protruding part of the larynx is called as Adams apple.

13. The phonatory system Vocal cords They are like projecting lips when cord are stretched open air passes freely between the and no sound is produced this is called as voice less sound the position is called as open glottis The vocal cords are drawn across and the pressing of air causes vibration, thus it is called as voiced sounds, the positon is called as closed glottis

14. The vocal cord

15. The articulatory system: the tongue It is the chief articulatory organ in most of the speech sound The language which is learnt from parents is called as mother tongue By varying position we can produce different sounds

16. The different parts of tongue Tip or point Blade-tip and a little back The front: opposite hard palate The back: opposite soft palate

17. The articulatory system: the lips The lips are the important in the production of various sounds They modify the air stream in a number of ways There can be various positions of the lips

18. The position of lips

19. Hard palate [roof of the mouth] Present between the teeth ridge and the soft palate The hard palate and the front of the tongue by combining can obstruct air and produce sound /j/ in “yes”

20. The soft palate or Velum The soft palate is present just behind the tongue soft palate is hanging down from the roof of the mouth The soft palate goes up and comes down When it goes up the air passage of naval cavity is blocked and the sound is produced in the mouth The sound produced through the nose the soft plate hands down and the air enters into the nasal cavity eg : /m/,/n/ are produced through nasal cavity

21. The soft palate

22. The teeth Ridge [alveolar ridge] It is just behind the teeth and it covers the root of the teeth The teeth ridge by combining with the tip or blade of the tongue can modify the air For producing the sound /r/-” ran "and /s/- “such”

23. The teeth They are not for biting or eating purpose only, they also modify the sound with the help of other organs of speech By combining the upper teeth with the lower lip, we are able to produce the sound like /f/ and /v/ The upper teeth and tip of the tongue sound like /q/ and /s/ in the word “think’

24. The teeth

25. The nasal cavity When the soft palate is down the air passage to the nose in open So the air enters into the cavity for going out of the nose portion of nose is called the nasal cavity The sound/m/,/n/are produced through nose.