The stereo cilia are projected from which part of the hair cell ?

Options

A. Basal part
B. Apical part
C. Lateral part
D. Front part

Answer

**Step-by-Step Solution:**

1. **Understanding the Structure of the Ear:**
- The question pertains to the internal ear, specifically the cochlea, which is a spiral-shaped organ responsible for hearing.

2. **Identifying the Components of the Cochlea:**
- The cochlea consists of three main canals: scala vestibuli, scala media, and scala tympani. The scala media contains the organ of Corti, which is crucial for sound transduction.

3. **Locating the Organ of Corti:**
- The organ of Corti is situated on the basilar membrane within the scala media. It contains hair cells that are essential for converting sound vibrations into neural signals.

4. **Understanding Hair Cells:**
- Hair cells have two main parts: the basal part and the apical part. The basal part is in contact with the auditory nerve, while the apical part is exposed to the fluid in the cochlea.

5. **Identifying Stereocilia:**
- The apical part of hair cells is characterized by hair-like projections known as stereocilia. These projections play a critical role in the auditory process by converting mechanical energy (sound vibrations) into electrical signals.

6. **Conclusion:**
- Therefore, the stereocilia are projected from the apical part of the hair cell.

**Final Answer:**
Stereocilia are projected from the apical part of the hair cell.

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