Which is the basic building block of the nervous system?

Which is the basic building block of the nervous system?

• A. Dendrite
• B. Neuron
• C. Axon
• D. Myelin Sheath

Answer: (B)

Neurons are the basic building blocks of the nervous system. They’re specialized cells that receive, process, and transmit information through electrical and chemical signals. A neuron has dendrites to pick up signals, a cell body to process them, and an axon to send the signal to other neurons or muscles. The myelin sheath speeds up transmission along the axon, but it isn’t a separate unit of the nervous system—the neuron itself is the fundamental unit. Dendrites and axons are parts of a neuron, not standalone building blocks. Neurons connect at synapses to form the networks that underlie all thoughts, sensations, and actions.

Neurons are the basic building blocks of the nervous system. They’re specialized cells that receive, process, and transmit information through electrical and chemical signals. A neuron has dendrites to pick up signals, a cell body to process them, and an axon to send the signal to other neurons or muscles. The myelin sheath speeds up transmission along the axon, but it isn’t a separate unit of the nervous system—the neuron itself is the fundamental unit. Dendrites and axons are parts of a neuron, not standalone building blocks. Neurons connect at synapses to form the networks that underlie all thoughts, sensations, and actions.