organ of corti
C1+Technical/Scientific
Definition
Meaning
The sensory organ within the cochlea of the inner ear that contains hair cells responsible for converting sound vibrations into nerve impulses.
The primary biological structure for hearing in mammals; a complex, spiral-shaped apparatus that transforms mechanical sound waves into electrical signals for the brain.
Linguistics
Semantic Notes
This is a fixed anatomical term named after the Italian anatomist Alfonso Corti (1822-1876). It is singular, but the word 'organ' can cause confusion as it refers to a single, complex structure, not multiple. The 'of Corti' is always capitalized.
Dialectal Variation
British vs American Usage
Differences
No difference in terminology. Spelling of related words (e.g., cochlear vs. cochlear) does not change.
Connotations
None beyond the strict anatomical reference.
Frequency
Used identically and exclusively in scientific/medical contexts in both varieties. Zero frequency in general discourse.
Vocabulary
Collocations
Grammar
Valency Patterns
The organ of Corti [verbs: lies, is located, sits, contains] within the cochlea.Damage to the organ of Corti results in hearing loss.Vocabulary
Synonyms
Neutral
Weak
Vocabulary
Antonyms
Usage
Context Usage
Academic
Central topic in auditory physiology, neuroscience, and otolaryngology papers.
Everyday
Virtually never used in everyday conversation.
Technical
The precise term for the hearing sensory organ in medical diagnoses, audiology, and biomedical engineering.
Examples
By CEFR Level
- The organ of Corti is a very important part of the ear for hearing.
- Loud noise can damage the organ of Corti.
- High-frequency sounds are processed at the base of the cochlea, where the organ of Corti is most sensitive.
- The research focused on regenerating hair cells within the mammalian organ of Corti.
- The exquisite mechanotransduction apparatus of the organ of Corti relies on the deflection of stereocilia to gate ion channels.
- Pathologies affecting the stria vascularis can secondarily compromise the function of the organ of Corti by disrupting the endocochlear potential.
Learning
Memory Aids
Mnemonic
Think: CORTI = CORe of hearTIng. The 'core' organ for hearing is 'Corti' inside your ear.
Conceptual Metaphor
THE EAR IS A COMPLEX MACHINE: The organ of Corti is the 'transducer' or 'microphone' of this machine.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not translate 'organ' as 'организм' (organism) or 'орган' (as in a state organ). It is specifically 'орган Корти' or 'спиральный орган'.
- Avoid confusing with 'кортеж' (cortege) or other similar-sounding words.
Common Mistakes
- Calling it 'organs of Corti' (plural). It's one organ.
- Misspelling as 'organ of Corty' or 'organ of Korti'.
- Using it as a countable noun (e.g., 'an organ of Corti'). It's a proper name for a specific structure.
Practice
Quiz
What is the primary function of the organ of Corti?
FAQ
Frequently Asked Questions
Alfonso Corti (1822-1876) was an Italian anatomist who first described this structure in detail.
No, it is specific to mammals. Other vertebrates have homologous structures but not the identical organ of Corti.
In adult humans and most mammals, hair cell loss is permanent, leading to irreversible sensorineural hearing loss. Research is ongoing into regenerative therapies.
It sits on the basilar membrane within the fluid-filled cochlea of the inner ear, running along its spiral length.