If Human body is an electrical circuit,then what switched it on?

Question

I always have doubt on what would have initiated the first heart beat?say a contraction or expansion or chemical reaction trigger ..but how that itself happens?

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Answer 1

CHEMICAL ELECTRICITY, KNOWN AS BIO ELECTRICITY. IT'S A DIRECT CURRENT. A BIT LIKE A BATTERY.

Answer 2

well if you think about it. the brain and the nerves are electrical. i think that it have to with it.  

Answer 3

General Electric

Answer 4

The simple answer is gated membrane pores that selectively pump ions through their channels.

The pores regulate charged ions such as sodium and potassium (+1 charge) to the point where there is an electrical gradient across the semipermeable membrane of the cell.

A signal such as a neurotransmitter molecule will selectively open ion channels in the membrane, allowing the millivoltage differential to rapidly change in a pulse across the membrane.

OKAY, that is the "simple" answer.

The metaphysical answer is...God