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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 |