muscle contraction
Tissue generating tension
Muscle contraction is the tightening of muscle fibers that produces movement or tension.
When muscles contract, they shorten and pull on bones or other structures: The muscle contraction in her calf caused a painful cramp.
Contractions can be voluntary, like flexing an arm, or involuntary, like the heartbeat or digestive movements.
- actinCellular contractile protein
- myosinMotor protein enabling contraction
- power strokeCombustion-driven piston movement
- troponinMuscle regulatory protein complex
- tetanusMuscle-stiffening bacterial disease
twitch · electromyography · isometric · slow twitch · fast twitch · concentric · cramp · charlie horse · lactic acid · tension · motor neurons · flex · strain · ache · pulse · shorten · tighten · bicep
- body functionsbreathing, digestion, heartbeat, circulation, respiration
- body responsesfight, flight, shivering, freeze, goosebumps
- physiologymetabolism, circulation, respiration, homeostasis, digestion
- biological movementlocomotion, crawling, walking, running, swimming
- Body Processesmetabolism, digestion, respiration, circulation, heartbeat
- Life Processesmetabolism, respiration, digestion, circulation, reproduction
muscle contractionmuscle relaxation
Softening of contracted fibers
relaxation · flaccidity · hypotonia · atonia · letting go
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