Cristae/maculae lie in the ampullae of semicircular canals.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Structures**: The question asks about the presence of either cristae or maculae in the ampullae of the semicircular canals. First, we need to clarify what these structures are.

2. **Identifying Cristae**: Cristae are sensory structures located in the ampullae of the semicircular canals. They are responsible for detecting rotational movements of the head.

3. **Identifying Maculae**: Maculae, on the other hand, are sensory structures found in the utricle and saccule of the inner ear. They are primarily involved in sensing linear acceleration and the position of the head relative to gravity.

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