Here's a breakdown of the key terms:

* Nerve cells (neurons): The basic building blocks of the nervous system. They transmit signals throughout the body.

* Neural circuits: Interconnected groups of neurons that work together to perform specific functions.

* Nervous system: The complex network of neurons that controls all bodily functions, including thought, movement, sensation, and internal organ regulation.

Examples of neural circuits:

* Sensory circuits: Process information from the senses (sight, hearing, touch, taste, smell).

* Motor circuits: Control movement and coordination.

* Cognitive circuits: Involved in learning, memory, and decision-making.

* Emotional circuits: Regulate emotions and mood.

These circuits are organized into larger networks, such as the central nervous system (brain and spinal cord) and the peripheral nervous system (nerves extending throughout the body). The coordinated activity of these circuits allows the nervous system to operate effectively and maintain our well-being.