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Diagram and label the life cycle of a fern. Be sure to identify the gametophyte and sporophyte generations.
Neuromuscular Junction
The site where a motor neuron communicates with a skeletal muscle cell to induce muscle contraction.
Synaptic Cleft
The small gap between neurons at a synapse, across which neurotransmitters move to transmit electrical signals.
Sodium Channels
Protein channels located in cell membranes that allow the passage of sodium ions in and out of the cell, playing a crucial role in generating electrical signals in neurons and muscle cells.
Motor End Plate
A region of muscle fiber membrane that receives signals from nerves, triggering muscle contraction.
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