Q. When a muscle contracts, the
- Transverse tubules shorten, the myofibrils and sarcoplasmic reticulum close together
- Thin filaments and thick filaments of the sarcomere shorten
- Light chains dissociate from the heavy chains of myosin
- H bands and I bands of the sarcomere shorten because the thin filaments and thick filaments side past each other
Answer: H bands and I bands of the sarcomere shorten because the thin filaments and thick filaments side past each other
