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Physics, 02.12.2019 23:30

Children have about 1016 synapses that can transfer signals between neurons in the brain and between neurons and muscle cells. suppose that these synapses simultaneously transmit a signal, sending 1000 calcium ions (ca2+) across the membrane at each synaptic ending. determine the total electric charge transfer in coulombs during that short time interval. by comparison, a lightning flash involves about 5c of charge transfer. (note: this is a fictional scenario. all human neurons do not simultaneously produce signals.) e=1.6×10−19c.

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