Laryngeal Inlet
The laryngeal inlet (laryngeal aditus, laryngeal aperture) is the opening that connects the pharynx and the larynx. Borders Its borders are formed by: * the free curved edge of the epiglottis, anteriorly * the arytenoid cartilages, the corniculate cartilages, and the interarytenoid fold, posteriorly * the aryepiglottic fold The aryepiglottic folds are triangular folds of mucous membrane of the larynx. They enclose ligamentous and muscular fibres. They extend from the lateral borders of the epiglottis to the arytenoid cartilages, hence the name 'aryepiglottic'. They ..., laterally Additional Images File:Slide2kuku.JPG, Deep dissection of larynx, pharynx and tongue seen from behind File:Slide3kuku.JPG, Deep dissection of larynx, pharynx and tongue seen from behind See also * aditus References * * External links * - (listed as 'Inlet of the larynx') {{Authority control Human head and neck ...
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Pharynx
The pharynx (plural: pharynges) is the part of the throat behind the mouth and nasal cavity, and above the oesophagus and trachea (the tubes going down to the stomach and the lungs). It is found in vertebrates and invertebrates, though its structure varies across species. The pharynx carries food and air to the esophagus and larynx respectively. The flap of cartilage called the epiglottis stops food from entering the larynx. In humans, the pharynx is part of the digestive system and the conducting zone of the respiratory system. (The conducting zone—which also includes the nostrils of the nose, the larynx, trachea, bronchi, and bronchioles—filters, warms and moistens air and conducts it into the lungs). The human pharynx is conventionally divided into three sections: the nasopharynx, oropharynx, and laryngopharynx. It is also important in vocalization. In humans, two sets of pharyngeal muscles form the pharynx and determine the shape of its lumen. They are arranged as an ...
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Larynx
The larynx (), commonly called the voice box, is an organ in the top of the neck involved in breathing, producing sound and protecting the trachea against food aspiration. The opening of larynx into pharynx known as the laryngeal inlet is about 4–5 centimeters in diameter. The larynx houses the vocal cords, and manipulates pitch and volume, which is essential for phonation. It is situated just below where the tract of the pharynx splits into the trachea and the esophagus. The word ʻlarynxʼ (plural ʻlaryngesʼ) comes from the Ancient Greek word ''lárunx'' ʻlarynx, gullet, throat.ʼ Structure The triangle-shaped larynx consists largely of cartilages that are attached to one another, and to surrounding structures, by muscles or by fibrous and elastic tissue components. The larynx is lined by a ciliated columnar epithelium except for the vocal folds. The cavity of the larynx extends from its triangle-shaped inlet, to the epiglottis, and to the circular outlet at the ...
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Aditus Of Larynx
An aditus is the opening to some interior space or cavity. It may refer to: * Aditus to mastoid antrum, in the ear * Laryngeal aditus, the opening that connects the pharynx and the larynx * Omental foramen In human anatomy, the omental foramen (epiploic foramen, foramen of Winslow after the anatomist Jacob B. Winslow, or uncommonly aditus; la, Foramen epiploicum), is the passage of communication, or foramen, between the greater sac (general cavity ...

Epiglottis
The epiglottis is a leaf-shaped flap in the throat that prevents food and water from entering the trachea and the lungs. It stays open during breathing, allowing air into the larynx. During swallowing, it closes to prevent aspiration of food into the lungs, forcing the swallowed liquids or food to go along the oesophagus toward the stomach instead. It is thus the valve that diverts passage to either the trachea or the oesophagus. The epiglottis is made of elastic cartilage covered with a mucous membrane, attached to the entrance of the larynx. It projects upwards and backwards behind the tongue and the hyoid bone. The epiglottis may be inflamed in a condition called epiglottitis, which is most commonly due to the vaccine-preventable bacteria ''Haemophilus influenzae''. Dysfunction may cause the inhalation of food, called aspiration, which may lead to pneumonia or airway obstruction. The epiglottis is also an important landmark for intubation. The epiglottis has been identif ...
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Arytenoid Cartilage
The arytenoid cartilages () are a pair of small three-sided pyramids which form part of the larynx. They are the site of attachment of the vocal cords. Each is pyramidal or ladle-shaped and has three surfaces, a base, and an apex. The arytenoid cartilages allow for movement of the vocal cords by articulating with the cricoid cartilage. It may be affected by arthritis, dislocations, or sclerosis. Structure The arytenoid cartilages are part of the posterior part of the larynx. Surfaces The posterior surface is triangular, smooth, concave, and gives attachment to the arytenoid muscle and transversus. The antero-lateral surface is somewhat convex and rough. On it, near the apex of the cartilage, is a rounded elevation (colliculus) from which a ridge (crista arcuata) curves at first backward and then downward and forward to the vocal process. The lower part of this crest intervenes between two depressions or foveæ, an upper, triangular, and a lower oblong in shape; the latter ...
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Corniculate Cartilage
The corniculate cartilages (cartilages of Santorini) are two small conical nodules consisting of elastic cartilage, which articulate with the summits of the arytenoid cartilages and serve to prolong them posteriorly and medially. They are situated in the posterior parts of the aryepiglottic folds of mucous membrane, and are sometimes fused with the arytenoid cartilages. Eponym It is named by Giovanni Domenico Santorini Giovanni Domenico Santorini (June 6, 1681 – May 7, 1737) was an Italian anatomist. He was a native of Venice, earning his medical doctorate at Pisa in 1701. He is remembered for conducting anatomical dissections of the human body. From 1705 un .... The word "Corniculate" has a Latin root "cornu". Cornu means horn like projections. The projections of Corniculate cartilage look like "horns" hence the name. Additional images File:Gray950.png, The cartilages of the larynx. Posterior view. File:Gray956.png, Laryngoscopic view of interior of larynx. File:Gray958 ...
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Aryepiglottic Fold
The aryepiglottic folds are triangular folds of mucous membrane of the larynx. They enclose ligamentous and muscular fibres. They extend from the lateral borders of the epiglottis to the arytenoid cartilages, hence the name 'aryepiglottic'. They contain the aryepiglottic muscles and form the upper borders of the quadrangular membrane. They have a role in growling as a form of phonation. They may be narrowed and cause stridor, or be shortened and cause laryngomalacia. Structure The aryepiglottic folds are triangular. They are narrow in front, wide behind, and slope obliquely downward and backward. They originate from the lateral borders of the epiglottis. They insert into the arytenoid cartilages. In front, they are bounded by the epiglottis. Behind, they are bounded by the apices of the arytenoid cartilages, the corniculate cartilages, and the interarytenoid notch. Within the posterior part of each aryepiglottic fold exists a cuneiform cartilage which forms whitish promine ...
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Aditus (other)
An aditus is the opening to some interior space or cavity. It may refer to: * Aditus to mastoid antrum, in the ear * Laryngeal aditus, the opening that connects the pharynx and the larynx * Omental foramen In human anatomy, the omental foramen (epiploic foramen, foramen of Winslow after the anatomist Jacob B. Winslow, or uncommonly aditus; la, Foramen epiploicum), is the passage of communication, or foramen, between the greater sac (general cavity ...