ventral nasal meatus

The ventral nasal meatus is found between the ventral nasal concha and the dorsal surface of the hard palate.It connects the nasal vestibule with the nasopharynx. Rostrally it is narrow at the nasal vestibule and widens caudally towards the nasopharyngeal meatus. The ventral nasal meatus is the main passage for air. Apart from olfaction, the nasal cavity functions to warm the inhaled air as it passes through the meatuses over the vascular beds of the mucosa. The air is humidified by the vaporization of tears and serous nasal secretion. The air is cleaned throughout the scattered mucous glands. These glands secrete mucous through the nasal cavity and the mucous serves to trap the large particles that come into contact with it. Clinically in the horse the ventral nasal meatus is the main passage through which a stomach tube can be passed to the pharynx and oesophagus and then to the stomach. This kind of a tube is commonly used when drenching a horse for colic, as well as having many other veterinary applications. The tube has to pass through the ventral nasal meatus to the nasopharyngeal meatus and the caudal nares to reach the pharynx and oesophagus. If the tube is accidentally passed into the dorsal or middle nasal meatuses it would pass to the ethmotubinates and cause massive haemorrhage.

Tipo Gland
Estructura principal nasal meatus

Preguntas frecuentes

What is the ventral nasal meatus?
The ventral nasal meatus is the lowest of the nasal passages, located between the inferior nasal concha (turbinate) and the floor of the nasal cavity (hard palate). It serves as the primary airway passage.
What is the function of the ventral nasal meatus?
The ventral nasal meatus is the main air passage, connecting the nasal vestibule anteriorly to the nasopharynx posteriorly. It channels inhaled and exhaled air through the nasal cavity.
What structures border the ventral nasal meatus?
It is bounded superiorly by the inferior nasal concha (turbinate), inferiorly by the hard palate, laterally by the lateral nasal wall, and medially by the nasal septum.
Does the ventral nasal meatus receive drainage from any sinuses?
The nasolacrimal duct opens into the anterior part of the inferior meatus (ventral nasal meatus), draining tears from the eye into the nasal cavity. The paranasal sinuses drain into the middle or superior meatus, not the inferior.
What is the clinical relevance of the inferior (ventral) nasal meatus?
The opening of the nasolacrimal duct in the inferior meatus is relevant in dacryocystorhinostomy procedures. The inferior meatus is also the site for nasal intubation and antrostomy procedures.

Estructuras relacionadas

mucus body coating mucous body coating mucus cocoon mucous cocoon Mullerian duct ductus paramesonephricus multi cell part structure cell part cluster multicellular anatomical structure multicellular structure multilaminar epithelium laminated epithelium multi-tissue structure multi-tissue structures multi-unit eye

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Data sources: Terminologia Anatomica, Foundational Model of Anatomy, Wikidata.