Muscle contraction

Watch the short animations on muscle contraction and answer the questions on the paper from class.

Sarcomere Contraction:  https://www.youtube.com/watch?v=J9K1enGBJRw

Corporis Sliding Filament Theory:  https://www.youtube.com/watch?v=JbbVbwX0av8

Sliding Filament Theory:  https://www.youtube.com/watch?v=nTZnBdeIb5c

Calcium attachment Actin myosin crossbridge