Specific embryonic cells, called _______ develop into skeletal muscle fibers.

After death, muscle fibers run out of ATP and calcium begins to leak from the sarcoplasmic reticulum into the sarcoplasm. This results in a condition known as…

How did it go?

A disturbance in motor control, known as _______ can be caused temporarily by drugs and alcohol or permanently by a stroke.

This is a placeholder for the Mastering A&P credit.

Repolarization of a neuron during an action potential usually involves…

The _______ region of the sarcomere contains thick filaments.

The following are important steps in the process of muscle contraction:1. Myosin cross-bridges bind to the actin.2. The free myosin head splits ATP.3. A calcium ion is released from the sarcoplasmic reticulum.4. The myosin head pivots towards the center of the sarcomere.5. The calcium ion binds to troponin.6. The myosin head binds an ATP molecule and detaches from the actin. The correct order for these events is…

Connective tissues of the _______ contain nerves and blood vessels that service the muscle fibers.

The double helical nucleic acid that stores genetic information is  _______ .