The structure of the oral cavity and the functions of its structures

In physiognomy, two lines of the cheeks, running from the top of the wings of the nose to the sides of the chin and covering the corners of the mouth, are called FA-LIN in Chinese. These two lines, located in positions 56 and 57, control the fate of a person in the middle years of his fifth decade of life. These years may prove critical. The “critical years” in ancient China meant that if a person had a bad life before this time, it would be much more difficult to turn failure into success in subsequent years. Below we will tell you how to determine a person’s character by their cheeks.

As a general rule, a man should have fairly noticeable cheek lines by age 30. If these lines are already expressed by the age of 20, it is clear that he matures early and is a mature person. If by the age of 30 these lines are still not defined, this is a sign of delayed maturation.

Women rarely have pronounced Fa-Ling by age 30 or even 40. However, once they embark on a competitive professional career, these lines tend to appear.

Gums and teeth

Everyone knows that teeth are the main characters in the process of chewing and grinding food. According to their roles, teeth in a person’s mouth are divided into types:

  1. Incisors – the front 4 teeth, play the role of biting off the largest pieces.
  2. Fangs - their role is to break food and separate it into pieces; they are also called “eye teeth”.
  3. Small and large molars play the role of chewing and grinding food.

People eat food of different origins, both plant and animal. On this basis, it was concluded that people are omnivorous creatures.

This is possible due to the arrangement of the teeth and the structure of the oral cavity, which makes humans fundamentally different from animals.

All teeth have the same structure: a soft core, dentin. The core consists of blood vessels and nerves, and the hard substance (bone) is dentin. The main function of this substance is to protect teeth from microdamage. To do this, it is “painted” with enamel, which feels absolutely nothing. In addition, enamel has no equal in strength in the human body. It consists of an alloy of minerals (phosphorus and calcium salts) saturated with organic substances. The highest concentration of calcium is observed in dentin, where nerve fibers are contained.

The structure of the oral cavity and the functions of its structures

The mouth, or oral cavity, is made up of many structures that work together to help us breathe, speak, smile, eat, and digest food. Once you become familiar with these anatomical structures and how they affect your overall health, you will understand why proper and regular oral care is so important. Listed below are the elements that make up the human oral cavity and the functions they perform.

Lips and cheeks

The basis of the lips and cheeks are muscles that allow us not only to kiss, but also to express a lot of different emotions - from joy to sadness. Through open lips, air enters the mouth and then into the lungs, allowing us to breathe. The muscles of the lips and cheeks help us speak. In addition, while eating, they retain food and saliva in the mouth. Finally, these strong muscles also influence the position of our teeth.

Language

The tongue is a powerful muscle that helps us chew, swallow, speak and taste food. Thanks to the taste buds, or taste receptors, located in the tongue (as defined in the Atlas of Human Anatomy), we can enjoy the taste of food. In total, in the oral cavity - on the tongue, palate, mucous membrane of the pharynx - there are up to 2500 such receptors, with the help of which we distinguish sweet from salty, bitter from sour.

Teeth, gums and alveolar bone

Teeth have a crown covered with hard enamel and roots that are held in the jaw bone. The stability of the teeth is ensured by the alveolar bone, periodontal ligament and gums surrounding the roots, which also protects the roots of the tooth from caries. The main function of teeth is to crush and grind food so that it can be digested in the stomach. In addition, teeth support the soft tissues of the face, giving them a certain shape, help us pronounce certain sounds and make our smile attractive.

Salivary glands

Humans have six glands that produce a clear liquid called saliva. Saliva is mostly water, but also contains substances that break down food so it can be digested. In addition, saliva moistens the mouth, making it easier to speak, chew and swallow. It continually washes away bacteria from your teeth and gums, helping prevent the development of tooth decay and periodontitis. The minerals and proteins contained in saliva play an important role in protecting the enamel from carious lesions. According to information presented on the MedWeb information portal, the human body produces up to two liters of saliva per day.

Temporomandibular joint

The ability to open and close the mouth, move the lower jaw forward, backward and side to side, as well as chew, speak and swallow, we owe to the work of the temporomandibular joints (TMJ). As dentists explain, these extremely complex paired joints, located on the right and left sides of the face, are set in motion by a whole group of muscles and ligaments. The slightest desynchronization of these joints—for example, due to arthritis or teeth grinding—can cause facial pain, difficulty chewing food, and other jaw mobility problems.

Maintaining oral health

To keep all oral structures healthy, brush your teeth twice daily using fluoride toothpaste, a soft-bristled brush, mouthwash, and clean between your teeth with dental floss. Regular cleaning of the tongue with a special pad on a toothbrush or scraper will help remove plaque accumulated on its surface. Using an antimicrobial mouth rinse will reduce the number of pathogenic bacteria that cause bad breath. It is equally important to give up tobacco and limit the consumption of sugars and other carbohydrates that provoke the development of caries: this will have a beneficial effect on the condition of the body as a whole.

Don't forget to regularly undergo preventive examinations and visit a hygienist for professional teeth cleaning, which allows you to remove tartar and plaque from areas of the dentition that are inaccessible to a brush. By carefully examining the oral cavity, the dentist will also be able to notice in time the slightest signs of cancer, the early diagnosis of which is of paramount importance.

The beauty of teeth is, of course, important, but the good condition and performance of all structures of the oral cavity is even more important, because this is the key to not only dental, but also the general health of each of us.

Language structure

The human tongue is a soft pink colored muscle mass on which taste buds are located. At the very top of the tongue, and along its edges, there are papillae, which are responsible for the taste of everything that comes into our mouth. It is no secret that the mouth is the first point where the initial processing of food and the adsorption of microorganisms and harmful substances begins. The tongue takes on the most important role here, accumulating on its surface all the harmful substances that form a coating known to everyone. It is imperative, for preventive purposes, to clean your tongue of plaque, which will get rid of the unpleasant odor and possible infections. At the root of the tongue, there are no papillae, there are tonsils. Which play an important role in protecting the human body, standing in the way of microbes, they do not allow them to penetrate inside.

Cheeks in physiognomy

The cheek lines should be clearly defined and without breaks. They should flow downwards, following a natural curve.

  • Wide, heavy cheek lines are usually found in prominent government or public figures. Deep, long cheek lines indicate longevity.
  • Overweight, round-faced people usually have weak, almost imperceptible lines; in people with a triangular face, these lines are often small and thin. People with square or oval faces usually have deep and distinct Fa-Ling lines.
  • How to determine a person’s character by their cheeks, if the lines of the cheeks are clearly expressed, but disorderly, i.e. Irregular, broken or twisted? This means that a person with such a character can face dangers, troubles, misfortunes, and obstacles.
  • If the two lines of the cheeks have different lengths or are not symmetrical, then this means that this person may have a dual nature and lacks sufficient power of concentration.
  • If the Fa-Lings do not have clear outlines or they are of unequal length, then this portends failure in endeavors.
  • Moles located on Fa-Lin, both right and left, portend personal danger (see below for analysis of Lincoln's face).
  • Ideal cheek lines are balanced curves on either side of the face, some distance from the corners of the mouth. This type of line is found in the average person, with a fair degree of success in life (Fig. 168).
  • Lines of the cheeks in the form of straight lines, running from the tops of the wings of the nostrils to the very end, although not touching the corners of the mouth, indicate a bitter battle for life (Fig. 169). Such people are surrounded by constant poverty.
  • The noble lines of the cheeks are those that begin as a smooth line and diverge in a graceful bend, disappearing to the side (Fig. 170). Such lines occur among high-ranking persons.
  • If the lines end somewhere near the corners of the mouth, but without touching them, and another pair of lines emanate from the corners of the mouth, going to the chin, then this person will have great success in life (Fig. 171). These lines become more pronounced and deep after 60 years.
  • People with a large number of folds on the face (Fig. 172) usually have extraordinary power in the political or financial world, provided that the other features of their face are in balance and proportion and can withstand such abundance of folds.
  • The short Fa-Ling lines combined with a thin nose, everted nostrils, crooked mouth and pointed chin (Fig. 173) are a combination of the worst features of the lower part of the face. This belongs to a man in perpetual poverty and dying early.

Figure 168

Figure 169

Fa-Ling rarely signifies evil. An exception to the rule is the case when the lines of the cheeks end right at the corners of the mouth (Fig. 174). Chinese face readers call this phenomenon "Flying Snake Enters the Mouth." Such a person has a chance to end his life under horrific circumstances (see also Fig. 98).

Another exception to the general rule is the case when two lines extend from the lower eyelids to the mouth (Fig. 175). This foreshadows an unnatural death. Such features require particularly careful analysis and should be studied in conjunction with the entire face.

Figure 174

Figure 175

Sky structure

The part of the oral cavity that is located on top is called the palate. The palate is made up of 2 components, hard and soft. The mucous membrane covers both parts, passing through the hard palate to the soft palate, it gradually turns into gums. The front side of the palate forms rudimentary formations (palatine alveoli), humans do not fully use them, but animals, on the contrary, use them to eat food. The palate has another role besides forming the upper part of the mouth; it is a barrier between the nose and nasopharynx. A kind of barrier wall is a small tongue that blocks access to the nasopharynx during the digestion process.

Structure of the mucous membrane

The entire human oral cavity is covered with a mucous membrane, which has a distinctive feature, regenerative ability. The mucous membrane protects the oral cavity from environmental influences. Chemical, mechanical, temperature factors cannot influence it. The structure of the mucous membrane is simple; in the lower part of the mouth - on the cheeks and lips, it forms folds; in the upper part - attached to the bones. The main roles of the mucous membrane:

  • The protective role is unpleasant, but it is a fact that many viruses and bacteria accumulate in the human mouth. The mucous membrane retains, prevents reproduction and removes all harmful microorganisms from the oral cavity.
  • Sensitive role - Due to the presence on its surface of many receptors responsible for sensations (taste, pain, temperature), it signals all the events that accompany food intake.
  • Absorption role – Thanks to this ability, we are able to take medications “under the tongue”. The mucous membrane perfectly absorbs protein and mineral compounds.

Anatomy of the human jaw

The human maxillofacial region has the following anatomical structure:
  • mouth slit,
  • vestibule of the oral cavity,
  • cheeks,
  • lips,
  • solid sky,
  • soft sky,
  • language,
  • gums,
  • teeth,
  • upper and lower jaw.


The oral fissure is limited by the lips, which represent the orbicularis oris muscle and subcutaneous fat.
The cheeks are formed by adipose tissue (Bishat's lump) and bundles of buccal muscle. In the projection of the crown of the upper second molar on the inside of the cheeks there is a papillary elevation of the mucous membrane.

The excretory duct of the parotid salivary gland opens from the papillary eminence.

The oral cavity, cheeks, upper and lower gums and teeth form the vestibule of the oral cavity.

Gums are alveolar processes of the upper and lower jaws, covered with mucous membrane, which cover the teeth in the cervical area.

The mucous membrane of the mouth and the enamel of the teeth are constantly moistened with saliva, which is secreted by paired parotid, sublingual and submandibular glands, as well as many small glands, in a volume of up to 1.5 liters per day. Saliva contains organic and inorganic substances, it contains about 18 amino acids, 50 enzymes, mucin, substances with antibacterial activity (leukins, opsonins, lysozyme).

Saliva promotes the maturation of enamel, remineralization, has a cleansing effect, antibacterial activity and at the same time favors the formation of plaque and tartar.

The hard palate is formed by the palatine processes of the upper jaws and the perpendicular processes of the palatine bones.

The soft palate is formed by muscle fibers covered with a mucous membrane with a large number of mucous glands. On the sides of it there are arches - the palatine lingual and the velopharyngeal, between which there are accumulations of lymphoid tissue, the so-called palatine tonsil.

The tongue is a muscular organ covered with a mucous membrane. Its structure is divided into a wide rear part - root, body, middle part and apex. On the upper mucous membrane of the tongue, there are four types of papillae containing taste buds: filiform, leaf-shaped, mushroom-shaped, and rough.

Upper jaw

The upper jaw is a paired fixed bone. Its structure includes the body, palatine process, frontal process, zygomatic process, and alveolar process.

The palatine process takes part in the formation of the hard palate, the frontal process participates in the formation of the orbit, the alveolar process carries the sockets of the teeth - alveoli, and the zygomatic process attaches the zygomatic bone.

In the body of the upper jaw there is a cavity - the maxillary sinus, containing air and lined from the inside with mucous membrane. In close proximity to it are the apexes of the roots of the large molars (especially the sixth). Therefore, there is a high probability that the inflammatory process that has arisen in the tooth and periodontal tissues can easily spread to the sinus - sinusitis will develop.

Lower jaw

The lower jaw is an unpaired movable bone, shaped like a horseshoe. Its structure includes: a body with dental alveoli; two branches ending in condylar and coronoid processes; the condylar process, which connects with the articular fossa of the temporal bone, participates in the formation of the temporomandibular joint, due to which movement in the lower jaw is carried out.

According to data from dental reference books

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