muscle fibre
Definition
- Noun:
- An elongated contractile cell that forms the muscles of the body: A muscle fibre is a single, thread-like cell that can contract (shorten) and relax. These cells are the fundamental building blocks of muscle tissue, responsible for generating force and movement.
Usage Examples
- Noun:
- Under the microscope, you can see each individual muscle fibre.
- Strength training can cause muscle fibres to grow thicker.
- The injury damaged several muscle fibres, causing pain and weakness.
Advanced Usage
"Fast-twitch muscle fibre": A type of muscle fibre designed for powerful, rapid contractions but fatigues quickly. Important for sprinting or weightlifting.
- Athletes in explosive sports typically have a higher percentage of fast-twitch muscle fibres.
"Slow-twitch muscle fibre": A type of muscle fibre designed for endurance, contracting more slowly but resistant to fatigue. Important for long-distance running.
- Marathon runners rely heavily on their slow-twitch muscle fibres.
"Muscle fibre recruitment": The process by which the nervous system activates more muscle fibres to produce greater force.
- Lifting heavier weights requires the recruitment of additional muscle fibres.
Variants and Related Words
- Muscle cell (n): A synonym for muscle fibre.
- Myocyte (n): The technical/biological term for a muscle cell.
- Muscle tissue (n): The larger tissue structure formed by many muscle fibres bundled together.
- Myofibril (n): The long, cylindrical organelles inside a muscle fibre that contain the contractile proteins.
Synonyms
- Muscle cell: The basic structural unit of muscle.
- Myofiber: An alternative term, especially in scientific contexts.
Related Phrases
- "To tear a muscle fibre": To suffer a minor injury where a muscle fibre is damaged.
- He tore a muscle fibre during the intense workout.
- "Muscle fibre type": Refers to the classification of fibres (e.g., slow-twitch vs. fast-twitch).
- Your muscle fibre type can influence your athletic potential.
Noun
-
an elongated contractile cell that forms the muscles of the body
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