What are voice folds?
People produce sounds, including speech, through vibrations of membranes called vocal folds, which are stretched through the larynx or voice box, which is an organ present in the throat of the mammals. The lung air is promoted by voice folds, causing vibration at specific frequencies that create sound sound. The expulsion of air through these membranes is controlled to make a number of different sounds. The exact features of these membranes differ significantly depending on gender, age and many other factors. For example, men tend to have lower voices than women, because among other things their voice folds are greater.
Physically, voice folds are located at the top of the trachea or trachea in the larynx or voicemail. They contain several muscles and are white, because little blood circulates through them. They are flat and generally have triangular shapes. The membranes are referred to as "folds" because they are to some extent folded inward rather than simply stretched.
vocal folds are not only involved in the production of sound - also a valuable role in moderating airflow and keeping food and water in the lung entry. Vocal folds are open during inhalation and exhalation to allow air in and out. During singing, speech and other sound production, they are almost closed because the air that has been released must cause membrane vibration. When one swallows food or holds their breath, the membranes are firmly closed. This allows you to keep the air and protect the larynx from exposing food residues.
It is slightly above the real vocal folds are "false voice cords", also known as vestibular or ventricular folds. They exist to protect real folds and are somewhat stronger. Although they play only a limited role in sound production, they are used in the production of very deep sounds and music styles that include screams or growl, such as Death Metal and "Screamo".
vocal folds develop and change with the age of people. Newborn folds have only one layer, while adult folds have three. The immature baby membranes tend to produce sounds much higher on the playground than in adults. For example, men of men produce sounds on a higher playground than adult women who generally produce sounds with a higher quarrel than adult men. During puberty, the membranes grow and mature in response to many different hormonal signals, which generally causes a change to a deeper and more mature sounding voice.