Which muscle protein binds with calcium ions that are released from the sarcoplasmic reticulum?

Explanation

To answer the question "Which muscle protein binds with calcium ions that are released from the sarcoplasmic reticulum?", we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Muscle Contraction**: Muscle contraction is initiated when an action potential travels along the sarcolemma (the muscle cell membrane). This is the first step in the process of muscle contraction.

2. **Calcium Ion Release**: As the action potential travels, it opens ion channels in the sarcolemma, allowing calcium ions (Ca²⁺) to enter the muscle cell from the sarcoplasmic reticulum, which is a specialized organelle that stores calcium ions.

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