Ads
related to: large nose anatomy image
Search results
Results From The WOW.Com Content Network
Anatomy of the nasal cavity. Nasal-associated lymphoid tissue labelled NALT. The nasal cavity is the large internal space of the nose, and is in two parts – the nasal vestibule and the nasal cavity proper. [2] The nasal vestibule is the frontmost part of the nasal cavity, enclosed by cartilages.
Many problems can affect the nose, including: Deviated septum - a shifting of the wall that divides the nasal cavity into halves; Nasal polyps - soft growths that develop on the lining of the nose or sinuses; Nosebleeds; Rhinitis - inflammation of the nose and sinuses sometimes caused by allergies. The main symptom is a runny nose.
Anatomy figure: 22:02-07 at Human Anatomy Online, SUNY Downstate Medical Center—"Anterior view of skull." Anatomy photo:29:st-0206 at the SUNY Downstate Medical Center—"Orbits and Eye: Bones" Anatomy figure: 33:01-03 at Human Anatomy Online, SUNY Downstate Medical Center—"The bones of the lateral nasal wall." "Anatomy diagram: 34256.000-1".
The piriform aperture, pyriform aperture, or anterior nasal aperture is a pear-shaped opening in the human skull.Its long axis is vertical, and narrow end upward; in the recent state it is much contracted by the lateral nasal cartilage and the greater and lesser alar cartilages of the nose.
[1] [3] It has a mean volume of about 10 ml. [1] [verification needed] It is situated within the body of the maxilla, [1] [3] [4] but may extend into its zygomatic and alveolar processes when large. It is pyramid-shaped, with the apex at the maxillary zygomatic process , and the base represented by the lateral nasal wall.
The septal nasal cartilage is also the main structure that provides the orientation of the nose, being the midline structure of the organ. With an offset septal nasal cartilage, the nose will appear crooked to the viewer. A crooked nose can block airflow coming from the nares to the lungs or vice versa. [4]
Vomer of infant. At an early period, the septum of the nose consists of a plate of cartilage, known as the ethmovomerine cartilage.. The posterosuperior part of this cartilage is ossified to form the perpendicular plate of the ethmoid; its anteroinferior portion persists as the septal cartilage, while the vomer is ossified in the membrane covering its posteroinferior part.
When exceptionally large, the sphenoid sinuses may extend into the roots of the pterygoid processes or greater wings of sphenoid bone, and may invade the basilar part of the occipital bone. [3] The septum of the sphenoidal sinuses may be partly or completely absent. Other septa also may be incomplete. [2]: 500