Anatomy & Physiology
How does tropomyosin regulate muscle contraction?
Tropomyosin binds calcium, changing the confirmation of troponin.
Tropomyosin prevents myosin heads from binding to actin in the absence of calcium.
Tropomyosin wraps myosin preventing actin from binding in the absence of calcium.
Tropomyosin releases calcium during an action potential.
Master Overview of Muscle Contraction with a bite sized video explanation from Bruce