Respuesta :
Semicircular ducts of the inner ear houses receptors most responsive to rotational (angular) movements of the head.
About the inner ear.
The inner ear is the innermost part of the ear, and houses the vestibulocochlear organs.
It has two main functions:
- To convert mechanical signals from the middle ear into electrical signals, which can transfer information to the auditory pathway in the brain.
- To maintain balance by detecting position and motion.
The inner ear is located within the petrous part of the temporal bone. It lies between the middle ear and the internal acoustic meatus, which lie laterally and medially respectively.
The inner ear has two main components – the bony labyrinth and membranous labyrinth.
Bony labyrinth – consists of a series of bony cavities within the petrous part of the temporal bone. It is composed of the cochlea, vestibule and three semicircular canals. All these structures are lined internally with periosteum and contain a fluid called perilymph.
There are three semicircular canals: anterior, lateral and posterior. They contain the semicircular ducts, which are responsible for balance (along with the utricle and saccule).
Membranous labyrinth – lies within the bony labyrinth. It consists of the cochlear duct, semicircular ducts, utricle and the saccule. The membranous labyrinth is filled with fluid called endolymph.
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