Cross bridge cycling ends when calcium ions are transported back into the sarcoplasmic reticulum.
What happens during crossbridge cycling?
The molecular mechanism whereby myosin and acting myofilaments slide over each other is termed the cross-bridge cycle. During muscle contraction, the heads of myosin myofilaments quickly bind and release in a ratcheting fashion, pulling themselves along the actin myofilament.
What are the 6 steps of a cross-bridge cycle?
Terms in this set (6)
- one. the influx of calcium, triggering the exposure of binding the exposure of binding sites on actin.
- two. the binding of myosin to actin.
- three. the power stroke of the cross bridge that causes the sliding of the thin filaments.
- four. ...
- five. ...
- six.
