How sound is produced while speaking?

How sound is produced while speaking?

Sound

We have a voice box know as larynx which is responsible for voice production 

Larynx consist of vocal cord

Vocal cord has a vocal folds.... vibration of this folds produce sound know as phonation

Larynx consist of vocal cord

What is Vocal cord ?

Vocal cord 

The vocal cords, also known as vocal folds, are a crucial component of the human respiratory and phonatory systems. They are located within the larynx, a structure situated in the neck at the top of the trachea, or windpipe. The larynx houses the vocal cords and serves as the primary organ for sound production and protection of the airway during swallowing.

Anatomically, the vocal cords are composed of layers of specialized tissue. The outer layer consists of a thin mucous membrane, while the inner layer is made up of three distinct layers: the epithelium, lamina propria, and thyroarytenoid muscle. The epithelium provides protection and lubrication to the vocal cords, while the lamina propria contains elastic fibers that contribute to their flexibility and vibratory properties. The thyroarytenoid muscle is responsible for controlling the tension and length of the vocal cords during speech production.

The vocal cords are attached to the arytenoid cartilages, which are small structures located within the larynx. These cartilages play a crucial role in controlling the movement and position of the vocal cords. When air from the lungs passes through the larynx, it causes the vocal cords to vibrate, producing sound. The pitch and volume of the sound are determined by the frequency and intensity of these vibrations.

The vocal cords can be divided into two main types: true vocal cords and false vocal cords. The true vocal cords are responsible for sound production and are located closer to the center of the larynx, while the false vocal cords are primarily involved in protecting the airway during swallowing and coughing.

Proper care of the vocal cords is essential to maintain vocal health and prevent damage. Factors such as hydration, smoking, excessive talking or shouting, and exposure to irritants can affect the function of the vocal cords. Injuries or disorders of the vocal cords can lead to voice changes, difficulty speaking, or other complications.

In conclusion, the vocal cords are complex structures within the larynx that play a vital role in speech production and airway protection. Understanding their anatomy and function is crucial for maintaining vocal health and overall well-being.