Found in the heart

___slides inward during muscle contraction.

Found in the walls of hollow organs; also called visceral

After the powerstroke, the actin-myosin cross-bridge remains intact until an ____ binds to the myosin head. After this, the myosin will detach from actin.

Calcium is stored in the ___.

___provides energy for muscle contraction and relaxation.

The unit between A and A is called

Which type of muscle is voluntary and striated?

Structure C is known as the thick filament of the sarcomere, it is also known as

Which type of muscle is involuntary and non striated?

Which type of muscle is involuntary and striated?

The binding of calcium to troponin signals tropomyosin to do what?

Calcium binds to ___ on the actin filaments of muscle fibers.

Found attached to bones throughout the body

Structure B is known as the thin filaments of the sarcomere, what is another name for the thin filaments?