cochlea

Cochlea Structure:
- The cochlea is a tapered tube coiled into a spiral, resembling a snail’s shell, crucial for hearing.
Three Fluid-Filled Compartments:
1. Scala Vestibuli:
  - Located at the top.
  - Filled with perilymph fluid.
  - High in sodium, low in potassium concentration.
2. Scala Media (Cochlear Duct):
  - Middle compartment.
  - Filled with endolymph fluid.
  - High in potassium, low in sodium concentration, which is unique and crucial for auditory transduction.
  - Houses the organ of Corti, the sensory organ of hearing.
  - Bound by Reissner’s membrane (roof) and the basilar membrane (floor).
3. Scala Tympani:
  - Located at the bottom.
  - Also filled with perilymph fluid.
  - Shares similar ionic composition to Scala Vestibuli.

Source

Created: 24-10-24 12:39