The _____ is a network of neurons at the base of the brain that projects signals up to higher brain regions and down to the spinal cord, and regulates attention and sleep.
Reticular Formation-->
-helps regulate attention and alertness. Composed of many groups of specialized neurons that project up to higher brain regions and down to the spinal cord
-A network of nerve fibers located in the center of the medulla that helps regulate attention,arousal, and sleep
Answer:
Nervous system
Explanation:
The nervous system is a network of neurons in our body for sending and receiving neurological messages. The neurons act like messengers which transfer signal from one part of the body to the brain. Neurons are special kind of cells which are present in billions in the nervous system and help to coordinate actions and senses.