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The trachea (pl.: tracheae or tracheas), also known as the windpipe, is a cartilaginous tube that connects the larynx to the bronchi of the lungs, allowing the passage of air, and so is present in almost all animals lungs. The trachea extends from the larynx and branches into the two primary bronchi.
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The Terminologia Histologica (TH) is the controlled vocabulary for use in cytology and histology. [1] [2] In April 2011, Terminologia Histologica was published online [3] by the Federative International Programme on Anatomical Terminologies (FIPAT), the successor of FCAT. It was intended to replace Nomina Histologica.
The laryngotracheal groove is a precursor for the larynx and trachea. The rudiment of the respiratory organs appears as a median longitudinal groove in the ventral wall of the pharynx. The groove deepens, and its lips fuse to form a septum, which grows from below upward and converts the groove into a tube, the laryngotracheal tube. The cephalic ...
The carina is a cartilaginous ridge separating the left and right main bronchi that is formed by the inferior-ward and posterior-ward prolongation of the inferior-most tracheal cartilage. [2] The carina occurs at the lower end of the trachea - usually at the level of the 4th to 5th thoracic vertebra.
The cricoid arch is the curved and vertically narrow anterior portion of the cricoid cartilage. Anteriorly, it measures 5-7 mm superoinferiorly; it becomes wider on eithers side towards its transition into the cricoid lamina of that side.
Netter's Essential Histology is a textbook/atlas of human histology authored by William K. Ovalle [1] [2] and Patrick C. Nahirney. [3] [4] Drawings by medical illustrator, Frank H. Netter, with contributing artwork by James A. Perkins, Joe Chovan, John A. Craig, and Carlos A.G. Machado, are in the book. [5]
The cricotracheal ligament connects (the inferior border of) the cricoid cartilage superiorly, and the first tracheal cartilage ring inferiorly. It is continuous with the tracheal perichondrium [1] and resembles the fibrous membrane which connects the cartilaginous rings of the trachea to each other. [citation needed] Cricotracheal ligament