04 - NEUROMUSCULAR JUNCTIONS WORKSHEET Word Bank...

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Unformatted text preview: NEUROMUSCULAR JUNCTIONS WORKSHEET Word Bank: acetylcholine, acetylcholinesterase, axon, dendrite, end plate potential synapse, excite, motor end plate, neurotransmitter, neuromuscular, opens, receptor protein, synaptic vesicles 1. In a neural circuit, the of one neuron transmits its impulse to the (receiver) of another neuron. 2. There is a space called a between the neurons. 3. The synapse between a neuron and a muscle cell is a junction. 4. A nerve impulse is passed through to the end of an axon of a motor neuron, which is filled with . 5. When a is released into the synaptic junction, it bonds to a on the membrane of a muscle cell. 6. When bonds with the receptor protein of a muscle cell, it the sodium and potassium gates of the region at the same time. This small region of the muscle cell is called the . 7. Opening both ion gates at the same time causes an . 8. End plate potentials stimulate adjacent regions of the muscle to create true action potentials that muscle contraction. 9. In order to prevent the free acetylcholine from reattaching and starting another muscle contraction, the enzyme deactivates the free acetylcholine. Print Close ...
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