The basic structural unit of the nervous system is known as?

• A. Neuron
• B. Glial cell
• C. Axon
• D. Dendrite

Answer: (A)

The basic structural unit of the nervous system is the neuron. Neurons are specialized cells that transmit information throughout the body via electrical and chemical signals. Each neuron is composed of three main parts: the cell body, which contains the nucleus; dendrites, which receive signals from other neurons; and the axon, which conducts impulses away from the cell body toward other neurons or muscles.

Neurons play a critical role in processing and transmitting information, making them fundamental to all nervous system functions, including reflexes, sensory perception, and cognitive processes. While glial cells are essential for supporting and protecting neurons, they do not have the same role in transmitting information. Axons and dendrites are components of neurons, but they cannot function independently as the basic structural unit of the nervous system. Therefore, the neuron is the correct answer, as it embodies the primary functional elements that enable the nervous system's operations.