Vasa efferentia contain ciliated cells. What purpose do they serve?

Explanation

### Step-by-Step Text Solution:

1. **Understanding Vasa Efferentia**: Vasa efferentia are small ducts that connect the testes to the epididymis. They play a crucial role in the male reproductive system.

2. **Presence of Ciliated Cells**: The vasa efferentia contain ciliated cells. These cells have tiny hair-like structures called cilia on their surface.

3. **Function of Cilia**: The primary purpose of these ciliated cells is to facilitate transportation. Specifically, they help in the movement of sperm from the testes to the epididymis.

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