Lagaena (Lagaena, Lagena)

The lagena is the closed end of the spiral that is found in the cochlea of ​​the inner ear in humans and other animals. But the term can also be applied to other animals that have similar structures.

The lagena is the part of the cochlea that is responsible for converting sound waves into electrical signals that are then transmitted to the brain. It is made up of many small hairs called cilia, which are arranged in a spiral and can move in response to sound waves.

In some primitive vertebrates, such as fish and amphibians, the cochlea of ​​the inner ear has a similar structure to the human cochlea. These animals also have a lagena, which allows them to perceive and respond to sounds.

Overall, the lagena is an important part of the cochlea and plays an important role in the perception of sounds. However, it can also be used to describe structures that are similar to the cochlea, but are not an exact copy of it.

The lagena is the closed end of the spiral, which is located in and is part of the cochlea of ​​the inner ear. The term is most often used to describe similar formations in vertebrates, which are primitive.

The lagena is located inside the cochlea and consists of a helical structure that is twisted into a spiral. It has a closed shape, which means it does not have an open end like other parts of the cochlea.

In humans, the lagena is about 20 mm long and consists of several layers of cells that form a spiral structure. Each layer of cells has a different function, including sensing sound and transmitting information from one cell to another.

In addition, the lagena also plays an important role in auditory processing, as it is part of the human auditory apparatus. It helps to perceive sounds and transmit information about them to the brain.

Thus, the lagena is a closed spiral of the cochlea of ​​the inner ear, which plays an important role in the hearing system of humans and other vertebrates.

Lagena or lagena?

The term Lagena is used to refer to the cochlear curl in many animals, including humans, but there are also many different spellings of the name for this structure. In scientific publications and on the Internet, it is customary to write this term Lagenera, Lagenera, Lagenella, Snail Curl, Cochlear Curl, etc. The correct abbreviation of the name of the term is **La Gena** or **La Gena**.

In this article we will look at where this term came from with such spellings and draw a conclusion about the true correct name. We will also consider the importance of the cochlea in medicine, how to work with this organ to improve your hearing.

**Snail-primitiveness**

The cochlear organ of hearing is a paired organ located in the pyramids of the temporal bones, mainly in humans, less often in representatives of other species. This organ begins its journey from the fact that in the embryo

What is Lagena or Laugena? How is it related to the ear, and where did it come from?

Lagena is not as simple as it seems. This is a name that comes from the ancient Greek word "lepen" and refers to the cutaneous opening of the cochlea in the inner ear (ear, labrum). This is where the neuron cells that create the auditory pathway are located.

Lagena is also called laugna, which is a misspelling of the term but is still widely used in many sources. In some cases, the word "leugina" may be used in the context of myology. For example, it may refer to the muscles that attach the lip to the cheek. These muscles have no relation to the leugnea of ​​the spiral thickening of the cochlea in the inner ear.

Due to the confusion around this term, it becomes a little more strange and confusing. Therefore, let's take a closer look at why lagena is called that way.

What is a Snail? A snail is an animal related to mollusks. It includes the concha, the head end and the inner ear. Snails often live underwater and use their internal organs, such as ears and eyes, to detect the food they consume.

*What is the spiral body of a snail? It occupies the central part of the shell, providing flexibility while being covered with thin deposits of lamellar keratin tissue.*

The spiral body of the cochlea contains all the mechanisms necessary to perform the function of the cochlea: movement, perception of sound and balance, and production of music. The functional parts of the cochlea are called the lamina, helix, nozzles, fibers and ducts.

The spiral body contains six bends (tubular canals), each of which is about 2 mm thick. The bottom of each elbow and the main channel fit tightly together. The fibers of the neurosensory apparatus make up the main structure of the spiral tube. In principle, the fibers are sensitive to the pressure at which they bend, and thus detect sounds. *The tips of the fibers usually correspond to the place where sounds pass.* They stretch along a spiral tubular shape, and the length of their extensions is equal to the length of the entire tubular body. As a result, the bend of the entire stem of the spiral corresponds once to one turn of the spiral. The outer end of the spiral body is called a spur and is usually brightly colored red. The spiral tube can also compress to protect the cochlea from invading foreign objects. What are lagenal funnels in the inner auricle? And why do we need this? Laungini are small holes surrounding the ears. There are about six of them - two on each side. Each of them leads to the inner ear through a laung. Laungin is used to regulate the production of earwax.

It is thanks to the launas that the snail is protected from the penetration of pathogenic microbes and other substances.