The nasal bone (Latin: Os nasale) is the largest bone of the human olfactory system. It consists of a very thin pair of bones that run between the eyes and roof the nasal cavity. An injury to the nasal bone should always be examined by a doctor. This is because if left untreated, it can … Nasal Bone: Structure, Function & Diseases
The nasal cavity, also called cavitas nasi, is paired and part of the respiratory tract. It thus plays an important role in respiration and also houses the olfactory mucosa, which is relevant to the olfactory process. What is the nasal cavity? The nose is formed by a bony framework supplemented by cartilaginous plates. The visible … Nasal Cavity: Structure, Function & Diseases
Anatomy The ethmoid bone gets its name from the ethmoid plate (lamina cribrosa), which like a sieve has numerous holes and is found in the facial skull (viscerocranium). The ethmoid bone (Os ethmoidale) is a bony structure between the two eye sockets (orbitae) in the skull. It forms one of the central structures of the … Ethmoidal cells
Swelling of the ethmoidal cells In a healthy state, particles and germs in the mucus are transported by the cell movement, the cilia beat, towards the exit (ostium, ostiomeatal unit). During an inflammation of the ethmoid cells (sinusitis ethmoidalis) the mucosa (respiratory ciliated epithelium) of the ethmoid cells can swell. This swelling can close the … Swelling of the ethmoidal cells | Ethmoidal cells
Inflammation of the ethmoidal cells Depending on the length of the symptoms, a distinction is made between acute (lasting 2 weeks), sub-acute (lasting more than 2 weeks, less than 2 months) and chronic (lasting more than 2 months) inflammation of the ethmoid cells (sinusitis). The ethmoid cells are the only paranasal sinuses that are already … Inflammation of the ethmoidal cells | Ethmoidal cells
Pain in the ethmoidal cells Inflammation of the ethmoid cells (sinusitis) can cause severe pain in the paranasal sinuses. This pain can be triggered and intensified when bending, coughing or tapping, i.e. in situations where pressure is increased. In addition, especially if the maxillary sinuses are also affected, tapping and pressure pain may occur to … Pain in the ethmoidal cells | Ethmoidal cells
Introduction The nasal cavities are counted among the upper air conducting airways. It is formed by bony and cartilaginous structures. Besides the respiratory function, it is relevant for antibacterial defence, speech formation and olfactory function. It is associated with various structures in the cranial region. The nasal cavity opens ventrally (anteriorly) via the two nostrils … Nasal cavity
Histology The nasal cavity can be divided histologically (microscopically) into three parts: The first is the respiratory epithelium; this is the characteristic multi-row, highly prismatic epithelium of the respiratory tract, which is covered with goblet cells and cilia (cinchona). Kinozilien are cell protuberances which are mobile and thus ensure that foreign bodies and dirt are … Histology | Nasal cavity
In medicine, the nasopharynx is the tripartite nasopharyngeal space composed of the nasopharynx, laryngeal pharynx, and oral pharynx. The muscles of the nasopharynx separate the alimentary canals from the respiratory tract. One of the most common complaints of this anatomical structure is pharyngitis. What is the nasopharynx? The nasopharynx is the pharyngeal portion located below … Nasopharynx: Structure, Function & Diseases
