EMBRYOLOGY
NERVOUS SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They carry messages back and forth from the brain to the rest of the body
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The send messages only to the spinal cord
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They only receive messages from the spinal cord
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They really don’t work. They are lazy and want everything done for them.
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Detailed explanation-1: -How Does the Nervous System Work? The nervous system uses tiny cells called neurons (NEW-ronz) to send messages back and forth from the brain, through the spinal cord, to the nerves throughout the body. Billions of neurons work together to create a communication network. Different neurons have different jobs.
Detailed explanation-2: -Neurons carry messages from the brain via the spinal cord. The neurons that carry these messages to the muscles are called motor neurons. Each motor neuron ending sits very close to a muscle fibre. Where they sit together is called a neuromuscular junction.
Detailed explanation-3: -The spinal cord carries messages back and forth between the brain and the nerves that run throughout the body.