## basilar_frequencies.jpg

The image is a detailed diagram illustrating the structure of the cochlea, which is part of the inner ear responsible for hearing. The diagram is labeled with various parts and frequencies.

### Main Diagram (A):
- **Cochlear Duct**: This is the central channel within the spiral shape.
- **Basilar Membrane**: A thin membrane that runs along the length of the cochlea, dividing it into two fluid-filled compartments.
- **Apex**: The tip or outermost part of the spiral structure.
- **Base**: The starting point at the inner end of the spiral.

The diagram also includes frequency labels in Hertz (Hz) around the spiral:
- At the base: 20 Hz, 150 Hz, 400 Hz, 600 Hz, 800 Hz, 1,000 Hz.
- Moving towards the apex: 2,000 Hz, 3,000 Hz, 4,000 Hz, 5,000 Hz, 7,000 Hz, and 20,000 Hz.

### Additional Diagrams (B, C, D):
- **Diagram B**: Shows a cross-section of the basilar membrane with labels for "base" and "apex." It also includes a wave pattern labeled as "high-frequency waves (1,500–20,000 Hz)."
- **Diagram C**: Similar to Diagram B but shows medium-frequency waves (600–1,500 Hz).
- **Diagram D**: Shows low-frequency waves (200–600 Hz) on the basilar membrane.

### Labels and Numbers:
- The cochlear duct is labeled with numbers indicating different frequencies.
- The basilar membrane is shown in cross-sections across Diagram B, C, and D to illustrate how it vibrates at specific frequencies.

This diagram helps explain how different parts of the cochlea respond to various sound frequencies.

This description was generated automatically from image files by a local LLM, and thus, may not be fully accurate. Please feel free to ask questions if you have further questions about the nature of the image or its meaning within the presentation.