What is the name of the chemicals that allow nerve impulses to cross the synaptic cleft?
1. Neurotransmitters
2. Neurons
3. Autonomic drugs
4. Presynaptic neurons
Correct Answer: 1
Rationale 1: Neurotransmitters are chemicals that allow nerve impulses to cross the synaptic cleft.
Rationale 2: The basic functional cell of the nervous system is the neuron.
Rationale 3: The chemicals that allow nerve impulses to cross the synaptic cleft are neurotransmitters.
Rationale 4: The neuron generating the original impulse is called the presynaptic neuron.
Global Rationale: Neurotransmitters are chemicals that allow nerve impulses to cross the synaptic cleft. The basic functional cell of the nervous system is the neuron. The chemicals that allow nerve impulses to cross the synaptic cleft are neurotransmitters. The neuron generating the original impulse is called the presynaptic neuron.
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