What is the basic cell that makes up the nervous system and transmits information?

What is the basic cell that makes up the nervous system and transmits information?

• A. Neuron
• B. Glial cell
• C. Nerve
• D. Synapse

Answer: (A)

The basic signaling cell of the nervous system is the neuron. Neurons are specialized to receive, process, and transmit information. They carry electrical impulses along their axons and communicate with other cells at synapses using neurotransmitters, forming networks that relay messages rapidly across the body. Their structure—dendrites to receive signals, a cell body, an axon to conduct impulses, and synapses for communication—allows them to perform this signaling role efficiently. Glial cells support neurons by providing insulation, nutrients, and protection, but they do not transmit nerve impulses themselves. A nerve is not a cell but a bundle of many axons that carries information between areas. A synapse is a junction where communication occurs, not a cell. Because neurons are the cells that actually transmit information, they are the correct answer.

The basic signaling cell of the nervous system is the neuron. Neurons are specialized to receive, process, and transmit information. They carry electrical impulses along their axons and communicate with other cells at synapses using neurotransmitters, forming networks that relay messages rapidly across the body. Their structure—dendrites to receive signals, a cell body, an axon to conduct impulses, and synapses for communication—allows them to perform this signaling role efficiently.

Glial cells support neurons by providing insulation, nutrients, and protection, but they do not transmit nerve impulses themselves. A nerve is not a cell but a bundle of many axons that carries information between areas. A synapse is a junction where communication occurs, not a cell. Because neurons are the cells that actually transmit information, they are the correct answer.