Unit 7
Muscular System
Objectives:
The student will learn the major structures and functions of the Muscular System.
Intermediate Objectives:
1. Describe the general functions of the Muscular System.
2. Distinguish between three types of muscles.
3. Define and explain the relationship between the terms origin, insertion and synergists and
antagonistic muscles.
4. Identify the six ways that skeletal get their names with examples of each.
5. Label muscles on both anterior and posterior diagrams of the human body and explain the
actions of those muscles emphasized by the instructor.
6. Provide an overview of muscle contraction including the terms sacromere, myofibril, actin,
myosin and their roles in this process.
7. Describe the neuromuscular junction including terms such as axon bulbs, synaptic cleft,
neurotransmitters and the function of calcium at this junction.
8. Describe the sliding filament theory of muscle contraction and the role played by calcium,
ATP, myosin, actin, tropomyosin, and troponin during this process.
9. Describe and explain the terms twitch, tetanus, tone, and oxygen debt.
10. Describe the three ways muscle cells acquire ATP.
11. Describe the difference between fast and slow twitch muscle fibers and the type of athlete
that benefits from each.
Unit 7: Muscular System 1
