Scientists have grown a miniature brain in a dish with a spinal cord and muscles attached. The lentil-sized grey blob of human brain cells were seen to spontaneously send out tendril-like connections to link up with the spinal cord and muscle tissue. The muscles were then seen to visibly contract.

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Scientists have grown a miniature brain in a dish with a spinal cord and muscles attached. The lentil-sized grey blob of human brain cells were seen to spontaneously send out tendril-like connections to link up with the spinal cord and muscle tissue. The muscles were then seen to visibly contract.