Professor pholman is lecturing about the reflex arc. he tells his students that _ in the __ help coordinate contraction of certain muscles and relaxation of others.

Professor Pohlman is giving a lecture on the reflex arc. He explains to his students that motor neurons in the peripheral nervous system help coordinate muscle contraction and relaxation.

The peripheral nervous system (PNS) links the central nervous system (CNS) to the rest of the body. The central nervous system functions as the nervous system's power plant.

Motor neurons receive information from other neurons and send it to your muscles, organs, and glands. For example, if you picked up a hot coal, the motor neurons in your fingers would cause your hand to let go.

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Professor pholman is lecturing about the reflex arc. he tells his students that _____ in the ______ help coordinate contraction of certain muscles and relaxation of others.

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Professor pholman is lecturing about the reflex arc. he tells his students that _ in the __ help coordinate contraction of certain muscles and relaxation of others.