## hair_ohc.jpg

The image is a detailed diagram illustrating two types of hair cells: inner hair cells (A) and outer hair cells (B). The diagram is labeled with various parts of these cells, providing an educational view for understanding their structure.

### Inner Hair Cells (A):
- **Apical Plate**: This is the topmost part of the cell.
- **Cilium**: A single cilium extends from the apical plate. It appears to be a sensory hair or stereocilia.
- **Nucleus**: The nucleus, which contains genetic material, is located within the cell body and is shown as a dark oval shape near the center.

### Outer Hair Cells (B):
- **Apical Plate**: Similar to inner hair cells, this part of the outer hair cell also has an apical plate.
- **Cilium**: The cilium here appears more numerous compared to the single cilium in the inner hair cell. These are also sensory hairs or stereocilia.
- **Nucleus**: The nucleus is located within the cell body and is shown as a dark oval shape near the center.

### Additional Details:
- **Subsurface Cisterns**: These are small, fluid-filled sacs beneath the outer nuclear membrane of both types of hair cells. They appear as lighter areas surrounding the nucleus.
- **Synaptic Bar**: This structure connects the inner and outer hair cells to other neurons or structures in the auditory system.
- **Efferent Nerve Ending** and **Afferent Nerve Ending**: These are labeled at the bottom, indicating where nerve signals connect with these cells. The efferent ending is on the left side of the diagram, while the afferent ending is on the right.

The diagram also includes labels for other structures such as the outer nuclear membrane, mitochondrion (a small organelle involved in energy production), and subplasma membrane. These are depicted with their respective shapes and locations within the cells.

This image is sourced from Kramer & Brown's 2019 book "Audiology: Science to Practice," page 75-76, and adapted from Lim (1986). The copyright for this diagram is held by W.B. Saunders.

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.