Fluids present in scala vestibule , scala tympani and scala media are respectively

Options

A. Perilymph , Endolymph , Perilymph
B. Perilymph , Perilymph, Endolymph
C. Endolymph , Perilymph ,Perilymph
D. Endolymph , Perilymph , Endolymph

Answer

To answer the question regarding the fluids present in the scala vestibuli, scala tympani, and scala media, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of the Inner Ear**:
- The inner ear consists of the cochlea, which is a coiled structure that plays a crucial role in hearing. It is divided into three main compartments: scala vestibuli, scala media, and scala tympani.

2. **Identify the Fluids in Each Scala**:
- **Scala Vestibuli**: This upper compartment is filled with a fluid known as **perilymph**.
- **Scala Media**: The middle compartment contains a different fluid called **endolymph**.
- **Scala Tympani**: This lower compartment, like the scala vestibuli, is also filled with **perilymph**.

3. **Summarize the Findings**:
- Therefore, the fluids present in the scala vestibuli, scala media, and scala tympani are:
- **Scala Vestibuli**: Perilymph
- **Scala Media**: Endolymph
- **Scala Tympani**: Perilymph

4. **Final Answer**:
- The correct answer is:
- Scala Vestibuli: Perilymph
- Scala Media: Endolymph
- Scala Tympani: Perilymph