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Many attempts have been made to explain scientifically how speech emerged in humans, although to date no theory has generated agreement. Non-human primates, like many other animals, have evolved specialized mechanisms for producing sounds for purposes of social communication. [3] On the other hand, no monkey or ape uses its tongue for such ...
A lobster is heavily cephalized, with eyes, antennae, multiple mouthparts, and the brain (inside the armoured exoskeleton), all concentrated at the animal's head end. Cephalization is an evolutionary trend in animals that, over many generations, the special sense organs and nerve ganglia become concentrated towards the front of the body where ...
See buccal speech. [1] after a laryngectomy, the esophagus may be used (notated {Œ} for simple esophageal speech, {Ю} for tracheo-esophageal speech in VoQS, and notated {И} for electrolaryngeal speech). See esophageal speech. [2] the pharynx, and replacing the glottis using the tongue and the upper alveolus, the palate, or the pharyngeal wall.
The point of maximum obstruction is called the place of articulation, and the way the obstruction forms and releases is the manner of articulation. For example, when making a p sound, the lips come together tightly, blocking the air momentarily and causing a buildup of air pressure .
The active articulators are movable parts of the vocal apparatus that impede or direct the airstream, typically some part of the tongue or lips. [3]: 4 There are five major parts of the vocal tract that move: the lips, the flexible front of the tongue, the body of the tongue, the root of the tongue together with the epiglottis, and the glottis.
The anterior oral part is the visible part situated at the front and makes up roughly two-thirds the length of the tongue. The posterior pharyngeal part is the part closest to the throat, roughly one-third of its length. These parts differ in terms of their embryological development and nerve supply. The anterior tongue is, at its apex, thin ...
One use of the word semivowel, sometimes called a glide, is a type of approximant, pronounced like a vowel but with the tongue closer to the roof of the mouth, so that there is slight turbulence. [ citation needed ] In English, /w/ is the semivowel equivalent of the vowel /u/ , and /j/ (spelled "y") is the semivowel equivalent of the vowel /i ...
The study, therefore, claims that Broca's area is the "motor center for speech", which assembles and decodes speech sounds in the same way it interprets body language and gestures. Consistent with this idea is that the neural substrate that regulated motor control in the common ancestor of apes and humans was most likely modified to enhance ...