nervous system

Phonetic Respelling: [ nur-vuhs sis-tuhm ]

Definition:

n. all the nerve cells and nervous tissues in an organism; including; in the vertebrates; the brain; spinal cord; ganglia; nerves; and nerve centers

Sentence:

We are learning about the nervous system.

More example sentences:

We are learning about the nervous system.

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The parasympathetic nervous system controls involuntary vital functions.

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The autonomic nervous system controls involuntary actions of the heart.

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Neurons carry and transmit electrical signals throughout the nervous system.

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