Speech production the larynx that then is modified by the vocal tract into different vowels and consonants. However speech production can occur without the use of the lungs and glottis in alaryngeal speech by using the upper parts of the vocal tract. An example of such alaryngeal speech is Donald Duck talk. The vocal production of speech may be associated with the production of hand gestures that act to enhance the comprehensibility of what is being said. The development of speech production throughout an individual's life starts from an infant's first babble and is transformed into fully developed speech by the age
Vocal cord dysfunction Vocal cord dysfunction Vocal cord dysfunction (VCD), also known as Paradoxical Vocal Fold Motion (PVFM) or Paradoxical Vocal Cord Movement (PVCM), is a pathology affecting the vocal folds (commonly referred to as the vocal cords). VCD is characterized by full or partial vocal fold closure, causing difficulty and distress during respiration, especially during inhalation. Symptoms of VCD are not always present. Rather, they often occur episodically, often defined as "attacks," where the sufferer will be symptomatic for a short period of time. Due to the similarity in symptoms, VCD attack are often mistaken for asthma attacks or laryngospasms. Although several