The latch bridge mechanism helps in which of the following in smooth muscles?
Latch bridge mechanism is one in which myosin cross bridges remain attached to actin for some time after cytoplasmic Ca2+ concentration falls. This causes sustained contraction with little ATP. This is of impoance in smooth muscles. Ref: Ganong's, Review of medical physiolgy, 21st Edition, Page 84
Initiation of contraction
Sustained contraction
Early dephosphorylation
None of the above