Consonant Consonant In articulatory phonetics, a consonant is a speech sound that is articulated with complete or partial closure of the vocal tract. Examples are , pronounced with the lips; , pronounced with the front of the tongue; , pronounced with the back of the tongue; , pronounced in the throat; and , pronounced by forcing air through a narrow channel (fricatives); and and , which have air flowing through the nose (nasals). Contrasting with consonants are vowels. Since the number of possible sounds in all of the world's languages is much greater than the number of letters in any one
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