Nasal Floor Anatomy

Each canal opens to the face by a nostril and into the pharynx by the choana.

Nasal floor anatomy. Formed by the maxilla and the palatine bones. In human respiratory system. The nasal cavity and the paranasal sinuses are referred to as the sinonasal tract or sinonasal region and its anatomy is recognised as being unique and complex. The floor of the nasal cavities which also form the roof of the mouth is made up by the bones of the hard palate.

Drains and clears the paranasal sinuses and lacrimal ducts. The most anterior part of the nasal cavity is the nasal vestibule. The nose is an olfactory and respiratory organ. Responsible for sense of smell.

Anatomy of the nasal cavity. It is subdivided into a left and right canal by a thin medial cartilaginous and bony wall the nasal septum. It consists of nasal skeleton which houses the nasal cavity. These videos are for educational purpose only for the medical stu.

This wall is the nasal septum which is formed by the perpendicular plate of the ethmoid bone the vomer cartilage and the nasal crests of the maxillary and palatine bones. In this video you will see the formation of the nasal septum and lateral wall of the nose. The incisive foramen transmits branches of the sphenopalatine artery and the nasopalatine nerve for general sensation from the nasal cavity and palate. The nose of an internal space the nasal cavity.

The nasal cavity extends from the external opening the nostrils to the pharynx. Warms and humidifies the inspired air. This wall is hallmarked by three nasal conchae superior middle and inferior. Besides the anterior and posterior apertures each nasal cavity has a roof floor and lateral and medial walls there are 12 cranial bones in total that contribute to the nasal cavity structure which include the paired nasal maxilla palatine and lacrimal bones as well as the unpaired ethmoid sphenoid frontal and vomer bones among all of them the ethmoid bone is the most important.

Medial wall nasal septum. Formed by the roof of the mouth the floor of the nasal cavity consists of the soft palate behind and the hard palate in front. The nasal cavity can be divided into the vestibule respiratory and olfactory sections. Removes and traps pathogens and particulate matter from the inspired air.

While the soft palate is composed of involuntary muscle the hard palate consists of the maxilla and the palatine bones. The floor of the nasal cavity is read more. Four paired paranasal sinuses the frontal sinus the sphenoid sinus the ethmoid sinus and the maxillary sinus drain into regions of the nasal cavity. The horizontal plate of the palatine bone posteriorly and the palatine process of the maxilla anteriorly.

The nasal cavity has four functions. Nasal vestibule the nasal vestibule is the dilated area at the nostril opening.