Anatomy/Physiology Matching
| Raises the eyebrows |
| Occipitofrontalis |
| Needed for energy for muscle contraction |
| ATP |
| Extends from on Z line to the next. |
| Sarcomere |
| Without oxygen |
| Anaerobic Respiration |
| Extend from one end of the muscle fiber to the other. |
| Muscles Myofibrils |
| Each presynaptic terminal contains |
| Synaptic Vesicles |
| The increase in number of motor units being activated is called______ |
| Recruitment |
| Synaptic vesicles secrete a neurotransmitter called _______ |
| Acetylcholine |
| Muscles that work in opposition to one another are called______ |
| Antagonists |
| Contract more slowly and more resistant to fatigue. |
| Slow Twitch Fibers |
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