muscle functional stuff

eccentric contraction

muscle lengthens while producing tension

concentric contraction

muscle shortens while generating force

sliding process

Ca++ binds to troponin.

troponin removes tropomyosin from G actin.

myosin binds to actin.

myosin generates power stroke.

sarcomere shortens.

ATP recharges myosin head.

initiates coupling of myosin to actin

Ca++

which muscle fibers are best for endurance activity

oxidative muscle fibers are best

sarcomeres found in

skeletal muscle fibers contain