Where are cross bridges present?

Explanation

**Step-by-Step Text Solution:**

1. **Definition of Cross Bridges**: Cross bridges are small bridge-like structures formed by the interaction between thick and thin filaments in muscle fibers.

2. **Location of Cross Bridges**: Cross bridges are specifically found in the overlap region where thick filaments (myosin) and thin filaments (actin) come together during muscle contraction.

3. **Function of Cross Bridges**: These structures play a crucial role in muscle contraction by generating force and facilitating movement. When the muscle contracts, the cross bridges form and break, allowing the thick filaments to pull the thin filaments closer together.

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