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jack harris
chapter 6 muscles
| Question | Answer |
|---|---|
| muscle cells | muscle fibers |
| smiling muscle | zygomaticus |
| connective tissue sheath | epimysium |
| ability of muscle to shorten with force | contractility |
| connective tissue that suurounds and separtates the muscle | fascia |
| thin myofilaments | actin |
| thick myofilaments | myosin |
| ability to recoil to their original length | elasticity |
| ability to be stretched | extensability |
| capacity of muscle to respond to stimulus | excitability |
| neurotransmitter | acetylcholine |
| charge difference across a membrane | resisting membrane potential |
| nerve cells that carry action potenttials to muscle fibers | motor neuron |
| synaptic vessicles secrete | acetylcholine |
| highly ordered units of myofilaments | sarcomeres |