The space between the two structures of the neuromuscular junction is known as the _______.

The ______ is where the neuron and the muscle cell meet.

Which of the following diffuses across the synapse?

What is the specific neurotransmitter responsible for muscle contraction?

When a membrane is a rest, what is the net charge on the OUTSIDE of the cell?

When a membrane is a rest, what is the net charge on the INSIDE of the cell?

If enough _____ is released, the sarcolemma becomes temporarily permeable to Na+ and K+.

When a membrane charge is reversed or "upset", what is the net charge on the INSIDE of the cell?

When a membrane charge is reversed or "upset", what is the net charge on the OUTSIDE of the cell?

A(n)_____ is the electrical current generated by the "upset" or change in charge across the muscle cell membrane.

Which of the following is required to move a regulatory protein out of actins binding site?

Calcium is stored in the _____ before the action potential stimulates its release.

The attachment of a myosin head on actin's binding site is known as a _____.

_____ is required each time a crossbridge attaches and detaches.

As myosin heads attach and detach the actin filaments are pulled toward the center of the _______.

____ states that the sarcomere shortens when thin and thick myofilaments slide past each other.

Which of the following is NOT true about a single muscle fiber?

Which of the following is NOT true about a single muscle fiber?