Question

What happens when the thin filament in a muscle fiber slides over the thick filaments?

Answer 1

Answer:

As the thin filaments slide inward, structures called Z-discs come toward each other and the sarcomere shortens but the lengths of thick and thin filaments do not change. The sliding of the filaments and shortening of the sarcomere cause shortening of the whole muscle fiber and ultimately the entire muscle.

Answer 2

Answer:

Sliding of the filaments and shortening

Explanation:

As the thin filaments slide inward, structures called Z-discs come toward each other and the sarcomere shortens but the lengths of thick and thin filaments do not change. The sliding of the filaments and shortening of the sarcomere cause shortening of the whole muscle fiber and ultimately the entire muscle.

PLS MARK BRAINLIEST