Incompressible cochlear fluid requires the round window to counter-move with the stapes

Evidence

The membrane covering the round window moves to compensate for oval window movements, since the perilymph fluid is essentially incompressible. Inward movements of the stapes footplate at the oval window cause the round window to move outward, and outward movements of the stapes footplate cause the round window to move inward. — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 546

Categorization

• DEFINE: Explains the mechanical function of the round window in the cochlea’s fluid system.
• XREF: connects to: Incompressible cochlear fluid makes oval and round windows move in opposite phase; The round window serves as a pressure-release valve for incompressible cochlear fluid. — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 546

Broader Connections

• Incompressible cochlear fluid makes oval and round windows move in opposite phase #corroborates (1.00)
• The round window serves as a pressure-release valve for incompressible cochlear fluid. #expands (0.95) — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 546