Macula of saccule

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Macula of Saccule

The Macula of Saccule (pronunciation: /ˈmakjʊlə ɒv ˈsækjuːl/) is a crucial component of the inner ear's vestibular system, which is responsible for maintaining balance and spatial orientation in mammals.

Etymology

The term 'Macula' is derived from Latin, meaning 'spot' or 'stain'. 'Saccule' also originates from Latin, 'saccus', meaning 'sack'. Together, they refer to the 'spot of the sack', indicating its location in the saccule of the inner ear.

Function

The Macula of Saccule is a sensory epithelium that responds to linear accelerations and gravity changes. It contains hair cells that are stimulated by movement and send signals to the brain via the vestibular nerve. This information is then processed to control balance and spatial orientation.

Related Terms

  • Vestibular System: The system in the body that contributes to balance and spatial orientation.
  • Inner Ear: The innermost part of the ear, containing the cochlea, vestibule, and semicircular canals.
  • Vestibular Nerve: The nerve that carries spatial orientation information from the inner ear to the brain.
  • Epithelium: The thin tissue forming the outer layer of a body's surface and lining the alimentary canal and other hollow structures.

See Also

External links

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