The structure and function of the nasopharynx: picture, anatomy, diagram of
How does the nasopharynx of man?
Many people do not imagine what is the nasopharynx. This body is composed of cavities that connect the nasal passages and middle part of the pharynx.
On mucosal surfaces are goblet cells that produce mucus. They maintain a certain humidity is necessary for the normal functioning of the body. Further, consider the structure of the nasopharynx of the person.
What is the nasopharynx?
Due to the large number of vessels, this body warms the air further flows into the lungs. With the help of olfactory receptors, the patient can identify the different compounds that are present in the air.
First you need to understand where is the nasopharynx and what parts of the body. It is possible to allocate the nasal, oral and laryngeal region.
While SIP is not only the upper part of the respiratory tract. This body is the beginning of the digestive tract. The nasopharynx is constantly supplied with cold air, which can contain dangerous bacteria. Low temperature weakens the body and can cause inflammation.
To understand the causes of diseases, it is necessary to know the structure of the nasopharynx of the person in the context. When considering the diagram, you can determine the composition of this body.
The nasal part of the pharynx consists of small bundles of muscle fibers covered by a layer of epithelium. It includes several types of walls:
- To the back of the head and adjacent the top wall (vault).
- The lower part of the throat near the soft palate. In the process of swallowing it covers the mouth.
- The back wall is located near the cervical vertebrae. Her separated only by a layer of connective tissue.
- The front part of the pharynx adjacent to the nasal cavity, in which there are holes (joany). With their help the air into the nasopharynx of the person. To understand how this process occurs can be in the photo, where clearly visible holes in the nasopharynx.
Users preferred to study the structure of the nasopharynx and larynx in pictures. Thanks to the visual representation you can quickly figure out where the occipital or lower part of the body.
The holes in the side wall of the face to the auditory tubes. In this way the environment connects with the middle ear. Sound waves fall on the ear drum and cause vibrations.
The nasopharynx is a unique body which brings together practically all the voids in the man’s skull.
Tonsils are adjacent to the upper wall of a man. They consist of tissues of the lymphatic system and participate in the formation of immunity of the patient. A detailed diagram of the structure of the nasopharynx helps people to understand its composition and functions.
Nasopharyngeal tonsils include:
- Palatine education that are both sides;
- lingual tonsils.
This structure serves to protect the pharynx from the penetration of pathogenic microorganisms. In infants cavity in the bones of the skull are in the formative stages.
Hoany are smaller than adult. On a radiograph, you notice that they have a triangular shape.
At the age of 2 years children are changing the configuration of the nasal passages. They acquire a round shape. It hoani provide access of ambient air into the nasopharynx.
The main objective of the nasopharynx is to ensure a constant flow of air to the lungs.
With the help of special receptors of man can distinguish different smells.
In the nasal passages there are a large number of hairs. They hold harmful bacteria that can cause infection of the nasopharynx. The protective function of the nasopharynx prevents the reproduction of pathogenic microorganisms on mucous membranes.
Due to the abundance of blood vessels in the air fast enough to keep warm. This mechanism allows to avoid colds. The mucus is necessary for the timely cleansing of the nose from harmful bacteria.
Vocal cords and sinuses perform the function of the resonator. They participate in creating the sound of a certain timbre. Therefore, everyone’s voice is unique and different, even among twins.
The upper arch is used to maintain pressure in the skull. Pathological changes in this organ can cause constant headaches.
The structural features of the nasopharynx infants
Unlike adults, newborns, this body is still not fully formed. Anatomy of the nasopharynx in patients can be very different. This is due to the individual characteristics of the organism.
The sinuses gradually develop, and 2 years take an oval shape.
The feature of the child’s body and that they have weaker muscles.
What diseases can occur in the nasopharynx
If you have symptoms of diseases of the nasopharynx need to go to the audiologist. The doctor understands the smallest details that can help the patient.
During the examination the person can be identified the following diseases:
- sore throat;
- inflammation of the adenoids.
When the patient begins laryngitis inflammation of the mucous membrane of the pharynx. Bacterial infection may precipitate acute angina. A symptom of pharyngitis is the inflammation of the lining of the throat.
The nasopharynx is in constant contact with air that flows from the nasal passages of the person. The danger presented by dangerous microorganisms that can get to the mucous.
To prevent infection in the nasal passages in large quantity are the villi. They hold harmful bacteria and help prevent various diseases.
In the process livelihoods in the sinuses produces mucus that constantly removes harmful components. They fall to the surface of the mucous membranes of a person from the air.
Cold air can cause colds. To raise the temperature by vessels that nourish the tissues mucous membranes. In the nasopharynx is an extensive network of capillaries that nourish the cells.
On the surface of this organ are the receptors designed to detect odor. Cavity in the skull connected with the hearing. When hit by sound waves a person can determine pitch, rhythm and loudness.
The side walls of the throat are tonsils. They consist of lymphoid tissue and consist of adenoid, Palatine and lingual parts. The tonsils take part in formation of human immunity.