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🔬 Biology  ·  Neural Control and Coordination  ·  NEET

The sympathetic nervous system uses which neurotransmitter at target organs?

  • A Acetylcholine, released at the neuromuscular junction
  • B Noradrenaline (norepinephrine)
  • C Dopamine, acting mainly within reward pathways of the brain
  • D Serotonin, regulating mood within central synapses

Correct answer: B. Noradrenaline (norepinephrine)

Explanation: Sympathetic postganglionic neurons release noradrenaline (norepinephrine) at effector organs. Pre-ganglionic neurons release acetylcholine.

Concept context

Brain, spinal cord, neurons, reflex arcs, and sense organs.

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