Mucles Word Scramble
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Question | Answer |
sarcomeres | actin and myosin myofilaments form highly ordered units |
motor unit | a single motor neuron and all the skeletal muscle fibers it innervates |
presynaptic terminal | enlarged nerve terminal |
synaptic cleft | space between the presynaptic terminal and the muscle cell |
postsynaptic terminal | muscle fiber |
synaptic vesicles | diffuses across the synaptic cleft |
acetylcholine | neurotransmitter |
resting membrane potential | charge difference across the membrane |
motor neurons | nerve cells that carry action potentials to skeletal muscle fibers |
acetylcholinesterase | enzyme |
recruitment | increase in number of motor units being activated |
ATP | adenosine triphosphate |
ADP | adenosine diphosphate |
tetany | muscle remains contracted without relaxing |
lag phase | time between application of a stimulus to a motor neuron and beginning of contraction |
contraction phase | time of contraction |
relaxation phase | time during which the muscle relaxes |
Created by:
haleighkuhn13
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