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Related Concept Videos

The Vestibular System01:29

The Vestibular System

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The vestibular system is a set of inner ear structures that provide a sense of balance and spatial orientation. This system is comprised of structures within the labyrinth of the inner ear, including the cochlea and two otolith organs—the utricle and saccule. The labyrinth also contains three semicircular canals—superior, posterior, and horizontal—that are oriented on different planes.
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Equilibrium and Balance01:15

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The inner ear assumes dual functionalities of auditory perception and equilibrium maintenance. The vestibule is the organ responsible for balance. This organ contains mechanoreceptors, specifically hair cells, endowed with stereocilia, which aid in deciphering information regarding the position and motion of our heads. Two intrinsic components, the utricle and saccule, help perceive head position, while the semicircular canals track head movement. Neurological messages initiated in the...
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Anatomy of the Ear01:16

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Auditory sensation, commonly called hearing, involves the transformation of sonic waves into neural impulses facilitated by the structures of the auditory organ. The prominent, flesh-like structure on the side of the head, called the auricle, directs sound waves towards the auditory canal. The auricle is often mislabeled as the pinna, a term more aligned with mobile structures like a feline's external ear. The auditory canal penetrates the cranium via the external auditory meatus of the...
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The Auditory Ossicles01:11

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The auditory ossicles of the middle ear transmit sounds from the air as vibrations to the fluid-filled cochlea. The auditory ossicles consist of two malleus (hammer) bones, two incus (anvil) bones, and two stapes (stirrups), one on each side. These bones develop during the fetal stage and are the ones to ossify first. They are fully mature at birth and do not grow afterward.
The aptly named stapes look very much like a stirrup. The three ossicles are unique to mammals, and each plays a role in...
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Deformation in a Circular Shaft01:10

Deformation in a Circular Shaft

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One of the distinctive characteristics of circular shafts is their ability to maintain their cross-sectional integrity under torsion. In other words, each cross-section continues to exist as a flat, unaltered entity, simply rotating like a solid, rigid slab. To understand the distribution of shearing stress within such a shaft, consider a cylindrical section inside this circular shaft. This section has a length of L and a radius of R, with one end fixed. The radius of the cylindrical section is...
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Related Experiment Video

Updated: Aug 29, 2025

Posterior Semicircular Canal Approach for Inner Ear Gene Delivery in Neonatal Mouse
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Development of semicircular canal occlusion.

Su Fei1, Li Guangfei1, Meng Jie1

  • 1Department of Otorhinolaryngology Head and Neck Surgery, School of Medicine, Nanjing Tongren Hospital, Southeast University, Nanjing, China.

Frontiers in Neuroscience
|September 5, 2022
PubMed
Summary

Semicircular canal occlusion offers an effective surgical treatment for vertigo, aiming to preserve hearing and minimize complications. This review explores its history, research, and clinical outcomes for inner ear disorders.

Keywords:
Meniere's diseasebenign paroxysmal positional vertigolabyrinthine fistulasemicircular canal occlusionsuperior semicircular canal dehiscence syndrome

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Area of Science:

  • Otolaryngology
  • Neurosurgery
  • Vestibular Science

Background:

  • Vertigo management requires balancing symptom control with preservation of hearing and minimizing surgical risks.
  • Semicircular canal occlusion is a promising surgical modality for partial peripheral vertigo.
  • This technique has garnered scholarly attention due to its potential advantages.

Approach:

  • This article reviews the historical origins of semicircular canal occlusion.
  • It examines the foundational basic research underpinning the procedure.
  • Clinical applications and surgical effects on vestibular and auditory function are analyzed.

Key Points:

  • Semicircular canal occlusion is specifically indicated for partial peripheral vertigo.
  • The procedure aims to provide effective vertigo symptom control.
  • Emphasis is placed on minimizing damage to hearing function.
  • Reducing surgical complications is a primary principle.

Conclusions:

  • Semicircular canal occlusion presents a viable surgical option for specific vertigo cases.
  • Further understanding of its effects on vestibular and hearing function is crucial.
  • The technique aligns with the goal of safe and effective vertigo treatment.