The Miracle of the Human Body

We have been awed by some of the feats we have seen at the recent Winter Olympics, but have you REALLY thought about how your body works and how amazing it is?
Just take a relatively simple process like moving your hand. The brain emits a chemical message, which triggers a nerve fibre to conduct an electrochemical signal to the point where the nerve meets the muscle. Then the muscle cell must respond and cause the muscle fibres inside it to contract. Each of these steps must work in order to do a simple thing like lifting a hand.
Every part of this process requires energy — chemical energy which is produced by a very special protein inside each of your cells, called ATP Synthase. It works in a very similar way to an electric motor, to create the fuel that your body needs to use to power almost all the processes needed to keep you alive and functioning.

A nerve cell

The detail of the simplest part of an ATP Synthase is mind-boggling; the arrangement of all the component parts is staggering. Gorseinon Christadelphians have produced a video which looks in some detail at how one of the most basic actions in life requires a hugely complex system, and asks the question whether it could occur by chance.

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