Structure of human ear, jaws and head.

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2018-03-18 21:21:27

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The structure of the ear of a man is a whole chain ear canal, and so important that any adverse effects may become a very serious problem.

With four departments, we can catch any sounds around us. The visible body is the Pinna and behind the ear. According to it, the sound goes to the middle ear. If the outer ear were subjected to at birth deformation, the sound is fine already held can not. Also hearing can be affected by sulfur, which often blocks the ear canal.

No matter How we considered the structure of the ear human middle ear we see. However it is and placed it behind the eardrum. The middle ear cavity, ideally filled with air, but if you have any disease it is filled with the liquid. Immobility of the tympanic membrane indicates the presence of fluid, inflammation or other disorders.

Next, the structure of the ear of the person represented by the inner ear, which houses about forty thousand cells of the hair. They are the catchers of sound vibrations of different frequencies and generators of weak electric impulses transmitted to the brain, or rather its bark. Damage or loss of the hair cells is a stopper for the electric pulses, resulting in significant hearing impairment.

The Cochlea and the auditory centers of the brain are the passage for the fibers of the auditory nerve. Electrical impulses generated in the cochlea, reach the auditory centers of the brain, and obstacles on their way to distort the audio. He becomes indistinct and muffled.

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The structure of the ear of a man is a complicated hearing aid that requires special attention and meticulous care.

The human jaw Structure – this is a very complex mechanism, which at first glance appears to be only performs a chewing function. But it is not.

The Most important is the upper jaw, a steam room, located in the upper anterior region of the facial skull. It is considered one of the pneumatic bones that form the maxillary sinus.

The bone Itself is represented by a body and four processes. The body has four surfaces: orbital, anterior, nasal, infratemporal. Processes of bones are the frontal, zygomatic, alveolar and frontal lobe.

The lower jaw bone is presented unpaired. In itself it is large and durable, having two symmetrical halves, which are fused in the middle in a single bone to the first year of a child's life. The lower jaw has a body and a pair of flattened branches. The body of the mandible due to the base and the top. The upper part passes smoothly into the so-called alveolar process. Each side of the mandible forms the mandibular angle. The result of the work of the dentist depends on the knowledge of the bone of the mandible.

The Structure of the human head is the structure of its skull, which is divided into two parts – front and brain.

The Brain are frontal, two parietal, two temporal, the occipital and other bones. All these bones serve as protection to the brain. Separate cranial bones are connected by a very difficult seam, reminiscent of the coupling teeth of a crocodile, which, when the clutch includes everyone in the notch.

Inside the cerebral part of the skull presents a cavity which is filled with marrow.

The Front part has paired bones: maxillary, zygomatic, nasal, Palatine, unpaired mandibular. The bones are connected by fixed.

Also in the front part there are the nasal cavity, mouth and two eye sockets.

The Orbit has the form of a deep trench, which is located in the eyeball, framed by a plexus of nerves, muscles and blood vessels.

The nasal cavity is divided by a partition into two halves, each of which has a narrowed nasal passages.

The Oral cavity is separated from the bow with the help of the Palatine bones and maxillary processes. It is bounded by the upper and lower edges of the jaws.


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Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

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