Action Potentials in Neurons in the Inspiratory Center of the Medulla

question 65

Multiple Choice

Action potentials in neurons in the inspiratory center of the medulla result in action potentials in the ________ nerves to the diaphragm,which in turn cause ________ of the muscle,resulting in a/an ________ in the volume of the thoracic cage.

• A)motor; contraction; decrease
• B)parasympathetic; contraction; decrease
• C)sympathetic; contraction; increase
• D)motor; contraction; increase
• E)sympathetic; relaxation; increase

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