Olfactory bulb, olfactory organ, nasal tip, nostrils, nasal septum, bridge of the nose, nosebleeds
The nose is one of the individual characteristics of every person. Depending on
- Age and
the nose can be long or snub-nosed, narrow or wide, petite or hook-shaped. However, all noses have nostrils, nostrils, and a nasal septum that divides the nasal cavity in half. From the outside, a distinction is made between the root of the nose (pyramid, radix nasi), the bridge of the nose (dorsum nasi), the tip of the nose (apex nasi) and the nostrils (alae nasi).
The outer nose
The nose consists of a bony and a cartilaginous part. The hard, bony part is called Root of the nose or nasal pyramid and represents a kind of foundation for the cartilaginous part of the nose sitting on it. It consists of an extension of the frontal bone (pars nasalis ossis frontalis) at the top and extensions of the Maxillary bone (Processus frontalis maxillae) and in the middle from the nasal bone (Os nasale).
The cartilaginous part of the nose is mobile and consists of triangular cartilage (cartilago triangularis, cartilago nasi lateralis) on both sides. It sits on the bony bridge of the nose and connects to other cartilaginous parts of the nose.
Together with the Nasal tip cartilage (Cartilago alaris major), which consists of the nasal bridge (Columelle, Crus mediale) and the nostrils (Crus laterale), is the shape of the Nostrils certainly.
In addition, the triangular cartilage has a connection to the nasal septum (septum nasi) located in the middle of the nose.
The cartilaginous Nasal septum (Cartilago septi nasi) determines the height of the tip of the nose and can lead to a crooked nose, for example. The bony part, the nasal bone (os nasale), is primarily involved in the actual shape of the nose. Together with the cartilaginous parts, a misshapen nasal bone can make a humped nose or a saddle nose.
On the outside, the nose is covered with skin. As in other parts of the body, the skin has sebum glands and hair, that's why pubescent people often have ugly blackheads and blackheads, especially in the area of the nose acne.
- Upper turbinate -
Concha nasi superior
- Upper nasal passage -
Superior nasal meatus
- Middle turbinate -
Concha nasi media
- Middle nasal passage -
Meatus nasi medius
- Lower turbinate -
Concha nasi inferior
- Lower nasal passage -
Inferior nasal meatus
- Atrium of the nasal cavity -
- Olfactory threads - Fila olfactoria
- Olfactory bulb - Olfactory bulb
- Rear opening of the
Nasal cavity - Choana
- Nasal cavity - Cavitas nasi
- Pharyngeal almond -
- Frontal sinus - Frontal sinus
- Sphenoid sinus -
- Oral cavity - Cavitas oris
- Tongue - Lingua
You can find an overview of all Dr-Gumpert images at: medical illustrations
The inner nose
Although all noses are very different from the outside, we always find the same structure inside the nose.
The inner part of the nose is larger than what one might think when looking at the nose from the outside. Because here is the one Nasal cavitythat through the Nasal septum (Septum nasi) is divided into two halves.
The front part of the nasal septum consists of cartilage (Lamina quadrangularis, Cartilago septi nasi) and the rear part of non-deformable bone (Lamina perpendicularis). The bony portion in turn consists of extensions from other facial skull bones.
This is called Ethmoid bone (Os, because it is actually perforated in one place like a sieve by the olfactory nerves and the ploughshare (vomer). The main nasal cavity begins at the front with the nasal valve and ends with two adjacent openings, the Choans or also called "inner nostrils", in the throat. This causes the inhaled air to flow into the throat.
Like the outer nose, the main nasal cavity has boundaries on all sides. The roof is made up of the nasal bone (os nasale), part of the ethmoid bone (lamina cribrosa) and the body of the sphenoid bone. The bottom borders on our palate.
When we move our tongue from the back near the uvula forwards towards the incisors, we notice a transition to a hard structure. We call this hard palate (Palatum durum), which forms the lower limit of the main nasal cavity to our oral cavity.
At the side there are bony structures that consist of parts of the facial skull. Parts of the upper jaw (maxilla), the lacrimal bone (os lacrimale), the palatine bone (pallatum) and the sphenoid bone (sphenoid bone) are involved in this limitation. Here are the so-called Turbinatesthat actually look like such when viewed from the side. The turbinates serve to enlarge the surface Nasal mucosa and limit the nasal passages.
On each side there are three turbinates, an upper one (Concha nasi superior), a middle one (Concha nasi media) and a lower turbinate (Concha nasi inferior).
Between them are the Nasal passages (Meatus nasi superior, medius, inferior), through which the cold inhaled air can flow.
Another important factor for the doctor is the fact that the lower turbinate consists of an independent bone, while the overlying middle and upper turbinates consist of extensions of the ethmoid bone.
Function of the nose
A healthy nose can serve three main functions.
On the one hand, it should be the Inhaled air warm up, pre-clean and moisten. We also identify numerous everyday ones Smells with our fine sense of smell. This is why our nose also fulfills a certain sense of direction.
Pleasant smells of delicious food even stimulate our appetite and the production of Stomach acid at.
Unpleasant smells warn us about spoiled food, for example.
Anyone who has a bad cold or who keeps both nostrils closed notices how our voice changes and becomes more “nasal”. The nose takes care of it with its big one Resonance space for a language education.
In addition, a cold for swelling of the Nasal mucosa and our sense of smell lets us down at times.
Our lung can only tolerate warm, humid and clean air. Therefore, there is a short wreath in each nostril Nose hairsthat aim to provide a rough pre-cleaning of the air and can hold back dust.
Smaller hair that we bare with eye Could not recognize (ciliated epithelium) cover the entire mucous membrane of the nose and are also able to pack strokes in the direction throat to execute.
Anyone who has a cold certainly knows the unpleasant situation of having a slimy throat. However, the body wants to keep the nose free for breathing and forces people to either unconsciously swallow the mucus transported into the throat, which is not a problem, or to spit it out.
In addition to dust, mucus contains many viruses and bacteria that keep our colds going, but stomach acid kills almost every pathogen.
The constantly moist mucous membrane (regio respiratoria) is located between the ciliated epithelium and humidifies the dry inhaled air. The goblet cells form the moisture film, which actually look like a simple, light-colored drinking cup under the microscope.
The warming of the inhaled air comes about through a kind of own heating system of the nose.
This is formed by a network of very small blood vessels that are embedded directly in the nasal mucous membrane. As with central heating, this network of vessels is regulated centrally.
When the air is cold, the air should be warmed up, the blood vessels are now more supplied with blood. Warm air leads to down regulation of the blood flow.
The special sense Smell to be able to fulfill the olfactory mucous membrane (Regio olfactoria). It is located near the upper turbinate, the roof of the nose and the upper part of the nasal septum. Olfactory nerves (Nn. Olfactorii) collect the information of the smell and bring it through a sieve-like structure (Lamina cribrosa) through the ethmoid to the brain. If we want to perceive a subtle smell and, for example, smell a flower, then we start “sniffing”. This slow and short drawing in of air brings a lot of flow into exactly this area in which the olfactory cells are located. If we just put our nose to the rose and inhale deeply, we would hardly be able to perceive the smell.
Diseases of the nose
The common one sniff (Rhinitis), which we all go through at least once in one of the cold seasons, is a harmless infection from you virus. Mostly it concerns viruses from the group of rhinoviruses (rhinoviruses) or adenoviruses.
Further information on this topic is available at: sniff
Under one Sinusitis / sinus infection one usually understands the bacterial inflammation of the sinuses.
Further information on this topic is available at: Sinus infection
Curvature of the nasal septum
A Curvature of the nasal septum (Septal deviation) is an alteration of the Nasal septum (septum nasi). In most cases, the nasal septum is laterally displaced from birth or was caused by an injury nose (e.g. a slap on the nose with Nasal fracture) moved from their normal position.
Further information on this topic is available at: Curvature of the nasal septum
The loud breathing sounds like a good night's sleep snoring become a torture for everyone involved. The sawing noises arise in the upper airways. Swinging movements of the palate, the uvula or the base of the tongue or the lower throat produce such sounds when snoring.
Further information on this topic is available at: snoring
With the popularly named Nasal polyps it is swollen, bilateral enlargements (hyperplasia) of the nasal mucosa or the mucous membrane of the Sinuses.
They are called polyps because the mucous membrane enlarges like a mushroom looks like on a tree trunk.
Further information on this topic is available at: Polyps
The (Ozaena) is characterized by a degeneration of the nasal mucous membrane with loss of the ability to smell (anosmia). In the nose there are tough, smelly slime and numerous incrustations and barks.
You can find more information under our topic: Smelly nose
At the Nasal furuncle there is a bacterial infection of a hair root (hair follicle) at the nasal entrance. There is a danger when the pus that develops in a nasal furuncle melts into the surrounding tissue.
Further information on this topic is available at: Nasal furuncle
Nose blocked / nose closed
Once the nose is blocked, it becomes noticeable with swollen mucous membranes, an increased to excessive production of mucus and the typical symptoms of a runny nose.
First and foremost, all of these signs are very useful for the body because any pathogens that may be present can be removed more effectively from the nose with the help of the mucus.
The nose is blocked if, for example, viruses that cause respiratory infections (please refer Colds, colds), settle in the facial area, but also due to certain allergens that actually do not pose a threat to the organism, but cause a defense reaction as if they were harmful and the body should protect itself from them.
In addition, there are theories that say that even if we are not consciously aware of the process, the mucous membrane of the nose regularly swells; this procedure is quite normal for up to 80% of the population and is known as the "nasal cycle".
In response to the body's own signals, the mucous membranes on one side of the nose thicken, so that the air flow then increasingly flows through the other side. This may have the advantage that both halves of the nose could take turns in their task of cleaning the air from foreign matter.
So far, however, there is no definitive evidence for this theory. T
What to do with a stuffy nose
Despite all the advantages and protective mechanisms for the body, the breathing restriction, which in most cases is associated with a stuffy nose, remains extremely uncomfortable. So what can you do when your nose closes?
The first step is to think about the most likely cause of your nasal congestion. If an allergy is the problem, a thorough and detailed allergy test with a precise determination of the substances that trigger the symptom is recommended. These should then be avoided if possible or at least only be present in the environment to a lesser extent.
In addition, there are various options for allergy therapy, see also “Allergy”.
If a cold is the cause of the blocked nose, there is very little that can be done about the cause. Inhaling hot water vapor - either with special devices with a nose attachment or over a pot of hot water, which can be mixed with tea tree or chamomile oil - and humidifying the ambient air have a symptom-relieving effect.
This can be achieved very well, for example, with wet towels that are placed over the heating element.
Finally, of course, there is also the option of using special nasal sprays that are either mixed with a medicinal substance that constricts the blood vessels and therefore has a decongestant effect, a sea salt solution or something similar. A nasal rinse is also recommended for short-term, prompt improvement.
You can find out more about the topic here: Swollen nasal lining
Another problem that is very often seen in connection with the nose is fractures of all kinds.
Due to its exposed, protruding position on the face, the nose is particularly at risk of being injured by trauma. Bumps, blows or even impact trauma after falling or falling are conceivable here.
As the nose about two thirds of bone and Rest of cartilage characteristic structures break more often. A distinction is made between fractions (Fractures) the nose open of closed Fractures of the nasal bone (Os nasal), both of which are often associated with an injury to the nasal septum called the septum.
The term "open break“Means that parts of the bone have broken through the skin and are visible on the surface.
This means that open fractures are clear and usually easily recognizable.
At a closed fracture on the other hand, the skin can be completely uninjured on the outside or only show a small laceration or a bruise. These breaks are then also more difficult and not quite as clearly recognizable.
In general, how do you recognize a fracture of the nasal bone?
As already mentioned, the diagnosis is often more difficult to confirm with certainty only externally. That said, there are a few pointers to look out for:
If you can notice external changes, there is usually one above all else Inclination of the bridge of the nose noticeable. With direct force from the front one often sees a widened, rather flat nose.
It seems to be pushed apart. In almost all cases there are also typical side effects such as Nosebleeds, a bruise (Hematoma) in the affected area, pain (mostly pulsating and lasting for a long time) and severe swelling of the nose.
All of this naturally leads to a deterioration in the air supply with breathing problems and a significantly reduced ability to smell. The swelling of the surrounding tissue is often the reason why a fracture cannot be assessed with certainty from the outside.
If the pain of the patient leaves it, one can also try to move the nose a little under certain circumstances. In the event of a fracture, it is much more mobile as a whole compared to an intact nose. If the Nasal septum In the following, there is an increased susceptibility to infections and inflammation in the nasopharynx, frequent nosebleeds and new snoring.
In many cases the suspected diagnosis is clear based on the course of the accident; to secure this and to confirm it, however, we always recommend a X-ray image of the skull of the face. This also serves to prevent further fractures, for example of the cheekbone (please refer: Cheekbone fracture) or in the area of the jawbone.
How is a broken nose treated?
After this diagnosis, further therapy is necessary for the patient. In many cases one chooses one conservative Therapy, that is, for treatment without surgical intervention.
This is always possible when individual fragments are not or only slightly displaced and can be pushed back into the correct position by the attending physician. The nose is then supplied with a plaster cast or splint and should be protected afterwards.
The further healing process then usually takes about two weeks.
In the case of severely displaced fractures or shattered bone parts, one should opt for a surgical Decide therapy. Ideally, the operation should be carried out on the day of the accident and the aim is to restore the original shape and position of the bones. With quick treatment, the chances are generally pretty good that the nasal fracture will heal completely, leave no permanent damage and also no longer be visible externally after a while.
However, if the bones are not straightened again (repositioned) or if an error occurs, a so-called saddle or crooked nose can occur. This picture is seldom accompanied by impairment of breathing, mostly only a cosmetic-aesthetic problem remains. (please refer: Rhinoplasty)
The operation is usually carried out through the nostrils with the assistance of a camera. In the process, a small incision on the inner wall of the nose may be necessary. All fragments are intra-operatively (during the operation) reassembled and returned to the original position. In general, the patient also needs a plaster of paris or a splint afterwards so that the nasal fracture heals without consequences.
Rinse your nose
Under one Rinsing the nose (also possible with specially developed nasal showers) one understands the introduction of large amounts of liquid, which then flows off again without delay, into the nose.
The aqueous liquid used for this is usually an isotonic saline solution, i.e. water to which salt has been added in the natural proportions of the body.
Nasal rinsing is used in the so-called Rhinitis, so the Inflammation of the lining of the nose With sniff and increased mucus production, but also prophylactically as a preventive measure against these symptoms as well as against sinus infections and other illnesses in the mouth, nose and throat.
To rinse your nose you bend your head to one side and let isotonic saline solution (ready to buy or by dissolving 9gr salt in one liter of water to make yourself) flow in and out of the other nostril.
It is best to stand bent over a sink. The same procedure then follows on the other side. You should make sure that you continue to breathe through your mouth as calmly and normally as possible so that the water is not inhaled but can flow passively through it. During nasal rinsing, the inside of the nose, especially the mucous membranes in the nose, which is covered with fine hairs, should be cleaned mechanically. In addition, it is intended to stimulate the natural cleaning function and thus improve the defense against pathogens. There are several studies that have shown significant prophylactic results. However, studies are also known in which the condition of asthma patients with recurring sinus infections even worsened when using nasal rinses.