Definition

1. Noun:
   • The bodily fluid that fills the space between the bony labyrinth and the membranous labyrinth of the inner ear: Perilymph is a clear fluid found in the inner ear, surrounding the membranous structures involved in hearing and balance.

Usage

• Perilymph is a specific anatomical term. It is used in medical, biological, and audiological contexts to describe this particular fluid and its functions.
• It is typically used as a singular, uncountable noun.

Examples

• Noun:
  • The composition of perilymph is similar to cerebrospinal fluid.
  • A rupture in the membrane can cause perilymph to leak into the middle ear.
  • The study focused on the ionic concentration within the perilymph.

Advanced Usage

• "Perilymphatic space": Refers to the anatomical compartment filled with perilymph.
  • The scala tympani and scala vestibuli are perilymphatic spaces within the cochlea.

Variants and Related Words

• Perilymphatic (adjective): Relating to or containing perilymph.
  • The perilymphatic duct connects the inner ear to the subarachnoid space.

Synonyms

• There are no direct common synonyms for this precise anatomical term. In general descriptive language, one might use "inner ear fluid," but this is not a technical synonym.

Related Phrases

• Perilymph fistula: An abnormal opening that allows perilymph to leak, often causing hearing and balance problems.
  • The patient was diagnosed with a perilymph fistula following the head trauma.

Notes

• Perilymph is distinct from endolymph, which is the fluid contained the membranous labyrinth of the inner ear. The two fluids have different ionic compositions and functions.

Noun

1. the bodily fluid that fills the space between the bony labyrinth and the membranous labyrinth of the inner ear