What occurs when the heads of myosin contact actin?

When myosin head bind to the actin, it will form a cross bridge and causes a power stroke to occur. It will hydrolyse the ATP to ADP + Pi in the ATPase of the myosin head and the myosin head will detached from actin and tilt back to its original position. Hence the sarcomere will shorten

answer; i believe the correct answer is (anemia);

but there is no

i guess you forgot putting it.