What are the small electrical impulses that organize and conduct messages between nerve cells?

What are the small electrical impulses that organize and conduct messages between nerve cells?

• A. Nerve impulses
• B. Nerve cells
• C. Neurotransmitters
• D. Synapses

Answer: (A)

Nerve impulses are the electrical signals that carry messages between nerve cells. They arise as action potentials—brief, all-or-nothing changes in a neuron's membrane potential that travel along the axon to its terminals. When the impulse reaches the end of the neuron, it triggers the release of neurotransmitters into the synapse, which then pass the message to the next cell. This electrical signaling is what makes nerve impulses the rapid means of communication, distinct from neurotransmitters (the chemical messengers) and from synapses (the junctions where signals are transmitted).

Nerve impulses are the electrical signals that carry messages between nerve cells. They arise as action potentials—brief, all-or-nothing changes in a neuron's membrane potential that travel along the axon to its terminals. When the impulse reaches the end of the neuron, it triggers the release of neurotransmitters into the synapse, which then pass the message to the next cell. This electrical signaling is what makes nerve impulses the rapid means of communication, distinct from neurotransmitters (the chemical messengers) and from synapses (the junctions where signals are transmitted).