Q. With regard to contraction and relaxation of skeletal muscle, all of the following aretrue EXCEPT: (Solved)
1. contraction involves the release of K+ from the terminal cisterns
2. relaxation involves the release of Ca2+ from troponin
3. prior to contraction, increase Na+ and K+ conduction occurs in the end-plate membrane
4. relaxation involves cessation of the interaction between actin and myosin
5. contraction involves inward spread of depolarisation along T tubules
- a. contraction involves the release of K+ from the terminal cisterns