Exploring the Muscle System
9th Grade · PE · 60 min· General Standard 1
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Learning Objective
I can identify the major muscles in the human body and their functions.
- 1
The muscular system is composed of three main muscle types: skeletal, cardiac, and smooth.
- 2
Fast-twitch muscle fibers react quickly but tire easily, while slow-twitch fibers are endurance cells that work for longer periods.
- 3
The autonomic nervous system controls cardiac and smooth muscles, while the somatic nervous system controls skeletal muscles.
