What Is the Larynx?

Animals in vertebrates that have evolved above amphibians (frogs, toads, tadpoles, etc.) have trachea, and the specialised initial part that connects the pharynx is called the throat. Used to protect the trachea or as a vocal structure. It is also where the trachea and esophagus are separated. The laryngeal cartilage evolved from the gill arch supports the laryngeal wall, while the laryngeal wall of animals below birds is underdeveloped, only cricoid cartilage and arytenoid cartilage.

[hóu tóu]

Explanation:

The laryngeal cartilage evolved from the gill arch supports the laryngeal wall, while the laryngeal wall of animals below birds is underdeveloped, only cricoid cartilage and arytenoid cartilage. In mammals, thyreoid cartilage and epiglo-ttic cartilage are added to make it more complicated. The opening of the throat to the pharynx forms the throat, or the glottis formed by the longitudinal fissure, which can be opened and closed appropriately (this fissure is called the glottic fissure, and the structure constituting the glottic fissure is different from the glottic). The left and right mucous membranes that hold the glottis can open between cartilages, called the vocal cords, and have become vocal devices in amphibians and mammals. In addition, above the glottis of mammals, there are petal-shaped protrusions called epiglottis in contact with the base of the tongue. The laryngeal cavity above the vocal cord is called the laryngeal vestibulum, which opens to the pharynx, that is, the upper mouth of the laryngeal cavity is different from the glottis and is called the laryngeal opening. When swallowing food, the epiglottis covers the throat, and its predecessor is considered to be a mucous membrane, which can be seen in some reptiles. The pharyngeal pharynx formed a tubular bulge on the ventral wall at the rear to form the larynx, and the larynx branched and extended repeatedly to the rear to form tissue differentiation from the trachea to the alveoli.