Cupula

The dome or cupula is a small gelatinous dome-like structure that lies on the hair cells in the ampullary ridges of the membranous ampullary semicircular canals of the human inner ear. It contains cilia, which are sensitive structures that respond to movement and changes in body position in space.

The dome is an important element in the functioning of the semicircular canals and plays a role in the perception of movement and orientation in space. It is located at the end of the channel and serves to transmit signals from hair cells to information processing centers in the brain.

When the body moves, the dome reacts to this movement and transmits information about it to the brain. This allows a person to navigate in space and control his body position in space when moving.

However, the dome can also be damaged by various diseases such as Meniere's disease, which causes fluid to build up in the ear and damage the dome. This can lead to disorientation and hearing impairment.

Overall, the dome is an important element of the inner ear and plays an important role in a person's orientation in space. Understanding its functions and role in the functioning of the inner ear can help in the treatment of diseases associated with damage to the dome, as well as in the development of new treatments for disorientation disorders.

The dome is a small, gelatinous, dome-shaped structure that lies on the hair cells of the ampullary ridges of the membranous ampullary semicircular canals of the inner ear in some species of fish. The dome consists of several layers of cells that form a thin membrane and contain hair-type cilia.

The dome performs several functions in the fish's body. It provides protection to hair cells from mechanical damage and environmental influences. It also plays an important role in the perception of sound signals. The cilia of the hair cells, embedded in the dome, respond to sound waves and transmit information about them to the fish's brain.

Research shows that in some species of fish, the dome can change depending on environmental conditions, such as noise or light levels. This allows the fish to adapt to changing conditions and improve their chances of survival.

Although the dome plays an important role in the life of the fish, it is not the only mechanism used to perceive sound signals. For example, some other fish species have special organs called otoliths that are also involved in the perception of sounds.

Overall, the dome is an important component of hearing in fish and may play an important role in their survival and adaptation to their environment.

The dome or cupula, which is a small structure resembling the shape of a dome, is a structural element of the human inner ear. It is located on the basis of hair receptors present in special ampullary ridges of the membranous ampulla in the semicircular canal of the inner ear. These cells have increased sensitivity to changes in pressure and rotational movements.

The size and position of the domes can vary depending on the position of the head: the higher the head, the smaller the domes. The purpose of the dome is to increase the sensitivity of the receptor system of the inner ear, and head movement can be used for this purpose. At the beginning of the 20th century, John C. Fay reported that suppression of the functions of the dome causes the head to turn in the direction opposite to the direction of body rotation. Vertex accommodation, carried out in any noise, is supported by the structure of the domes and the brain centers for regulating balance.

Such operating principles of internal hearing are certainly the basis of human auditory function. Domes play an important role as an additional mechanism that maintains control over our perception of the world around us.