Which are the receptive regions of a neuron? Axon and axon terminals. Cell body and axon. Dendrites and axon terminals. Dendrites and the cell body.

Understanding Receptive Regions of a Neuron

Neurons are specialized cells that transmit signals in the nervous system. The receptive regions of a neuron are crucial because they are responsible for receiving signals from other neurons or sensory receptors.

1. Receptive Regions Defined:

   • Receptive regions of a neuron are parts that receive inputs from other cells or the environment.

2. Dendrites:

   • These are tree-like structures that extend from the cell body of the neuron. Dendrites are primarily responsible for receiving chemical signals from other neurons at synapses, leading to the generation of electrical signals.

3. Cell Body (Soma):

   • The cell body contains the nucleus and organelles. It integrates the signals received from the dendrites but is not primarily a receptive region in the same way dendrites are.

4. Axon and Axon Terminals:

   • The axon transmits signals away from the cell body. Axon terminals are involved in sending signals to other neurons but do not function as receptive regions.

5. Conclusion:

   • Among the choices provided, the most accurate option is "Dendrites and the cell body." While the cell body integrates signals, it is the dendrites that primarily receive them.

Final Answer

The receptive regions of a neuron are Dendrites and the cell body.