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The human mouth moves in distinct ways during speech production. When producing each individual sound out loud, humans use different parts of their mouths, as well as different methods to produce particular sounds. During the beginnings of babbling, infants tend to have greater mouth openings on the right side.
Stridor (from Latin 'creaking/grating noise') is an extra-thoracic high-pitched breath sound resulting from turbulent air flow in the larynx or lower in the bronchial tree. It is different from a stertor, which is a noise originating in the pharynx. Stridor is a physical sign which is caused by a narrowed or obstructed airway.
Overstimulation may be a contributing factor to infant crying and that periods of active crying might serve the purpose of discharging overstimulation and helping the baby's nervous system regain homeostasis. [10] [11] Although crying is an infant's mode of communication, it is not limited to a monotonous sound.
Mouth breathing can particularly affect the growing face, as the abnormal pull of these muscle groups on facial bones slowly deforms these bones, causing misalignment. The earlier in life these changes take place, the greater the alterations in facial growth, and ultimately an open mouth posture is created where the upper lip is raised and the ...
The sound is produced when a large bubble of trapped air is caught in the chest, and the reflex is trying to release this out of the mouth. Dunstan states that she has a photographic memory for sounds and that this, combined with her years in the opera and her experience as a mother, allowed her to recognize certain sounds in the human voice.
Respiratory sounds, also known as lung sounds or breath sounds, are the specific sounds generated by the movement of air through the respiratory system. [1] These may be easily audible or identified through auscultation of the respiratory system through the lung fields with a stethoscope as well as from the spectral characteristics of lung sounds. [2]
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In phonetics, ingressive sounds are sounds by which the airstream flows inward through the mouth or nose. The three types of ingressive sounds are lingual ingressive or velaric ingressive (from the tongue and the velum ), glottalic ingressive (from the glottis ), and pulmonic ingressive (from the lungs ).