3 Written Questions
3 Multiple Choice Questions
- Unit of muscle fibers composed of thick myosin protein filaments and thin actin protein filaments.
- Muscle that contracts under conscious control,
- Type of involuntary muscle found in the walls of internal organs and blood vessels.
3 True/False Questions
Actin → Structural protein in muscle cells that makes up the thin filaments of myofibrils.
Skeleton muscle → Type of involuntary muscle found in the walls of internal organs and blood vessels.
Sliding filament theory → Theory that actin filaments slide toward each other during muscle contraction while the myosin filaments are still.