Ad
related to: internal nose anatomy diagram images
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. The nasal vestibule is the frontmost part of the nasal cavity, enclosed by cartilages.
The nasal septum contains bone and hyaline cartilage. It is normally about 2 mm thick. The nasal septum is composed of four structures: Maxillary bone (the crest) Perpendicular plate of ethmoid bone; Septal nasal cartilage (ie, quandrangular cartilage) Vomer bone
The internal nasal valve is the narrowest region of the nasal cavity and is the primary site of nasal resistance. Segments. The nasal cavity is divided into two segments: the respiratory segment and the olfactory segment.
The nasal bones are two small oblong bones, varying in size and form in different individuals; they are placed side by side at the middle and upper part of the face and by their junction, form the bridge of the upper one third of the nose. Each has two surfaces and four borders.
The nasolacrimal duct (also called the tear duct) carries tears from the lacrimal sac of the eye into the nasal cavity. [1] [2] The duct begins in the eye socket between the maxillary and lacrimal bones , from where it passes inferoposteriorly before opening into the inferior nasal meatus .
Illustration of upper respiratory system. In anatomy, a nasal concha ( / ˈkɒnkə /; pl.: conchae; / ˈkɒnkiː /; Latin for 'shell'), also called a nasal turbinate or turbinal, [1] [2] is a long, narrow, curled shelf of bone that protrudes into the breathing passage of the nose in humans and various other animals.
The choanae (sg.: choana), posterior nasal apertures or internal nostrils are two openings found at the back of the nasal passage between the nasal cavity and the pharynx, in humans and other mammals (as well as crocodilians and most skinks).
The nasal meatuses are the spaces beneath each of the corresponding nasal conchae. In the case where a fourth, supreme nasal concha is present, there is a fourth supreme nasal meatus. Structure Coronal section of nasal cavity. The superior meatus is the smallest of the three. It is a narrow cavity located obliquely below the superior concha.
In humans and other mammals, the anatomy of a typical respiratory system is the respiratory tract. The tract is divided into an upper and a lower respiratory tract. The upper tract includes the nose, nasal cavities, sinuses, pharynx and the part of the larynx above the vocal folds.
The typical cranial anatomy of a bird. Pmx= premaxilla, M= maxilla, D= dentary, V= vomer, Pal= palatine, Pt= Pterygoid, Lc= Lacrimal. The skull consists of five major bones: the frontal (top of head), parietal (back of head), premaxillary and nasal (top beak ), and the mandible (bottom beak).
