Sliding Filament Theory

Question 0

Step 2

Answer 0

Myosin binding sites exposed on actin

Question 1

Step 1

Answer 1

Start with calcium being released from the sarcoplasmic reticulum

Question 2

Step 3

Answer 2

Myosin binds with actin

Question 3

Step 4

Answer 3

Myosin heads bound to actin snap and pivot towards the center of the sarcomere

Question 4

Step 5

Answer 4

ATP supplies energy for detachment myosin heads return to original position

Question 5

Step 6

Answer 5

Calcium returns to sarcoplasmic reticulum