Match the event to the phase of a muscle twitch. Each letter may be used more than once.

A crate is being pulled across a rough horizontal floor by a rope at a constant angle above the horizontal. Which forces act on the crate?

The term for all muscle fibers that are controlled by the same motor neuron is a(n) ____________________.

The plasma membrane of a muscle fiber is called the _____________________.

Which of the following could be used to name a muscle?

Explain how a muscle responds to stimuli of increasing strength. In other words, how does a muscle respond to lift a light object such as a pencil, compared to lifting a heavier object?

There are approximately how many myosin molecules in one thick filament? (1 pt EC)

A protein called _________________ helps attach thin filaments to the sarcolemma, which gives the muscle fiber structure and helps hold it together.

Both skeletal and cardiac muscles are striated.

The contraction cycle will continue to occur as long as ____________ is present.