Sagot :
Answer:
●Explanation●
When we decide to move, the motor cortex sends an electrical signal through the spinal cord and peripheral nerves to the muscles, causing them to contract. ... Muscles move body parts by contracting and then relaxing. Muscles can pull bones, but they can't push them back to the original position.
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Answer:
The brain sends signals to the muscles, which cause them to move. The sole method the brain communicates with muscles is through single nerve cells in the spinal cord known as motor neurons. A substance is released at the end of the axon as the impulse travels down the axon to the muscle.
Explanation:
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