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.
A) motor neurons; spinal cord
B) interneurons; spinal cord
C) motor neurons; peripheral nervous system
D) sensory neurons; peripheral nervous system

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The Answer of  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.
A) motor neurons; spinal cord
B) interneurons; spinal cord
C) motor neurons; peripheral nervous system
D) sensory neurons; peripheral nervous system

Professor Pholman Is Lecturing About the Reflex Arc