Nervous System
Explore the anatomy and organization of the nervous system, from the brain and spinal cord to the nerves and cells that allow the body to communicate.
Learn it step by step.
Start with the broad concepts, then open each lesson to explore the anatomy and science in greater depth.
How the Nervous System Is Organized
Build the foundation. Learn the difference between the central and peripheral nervous systems, how information enters the nervous system, and how signals travel throughout the body.
The Brain
Explore the major regions of the brain, the cerebral cortex, the major lobes, and how different regions contribute to nervous-system function.
The Spinal Cord
Learn how the spinal cord connects the brain and body, carries sensory and motor information, and participates in reflex pathways.
Peripheral Nerves
Follow the network outside the brain and spinal cord and learn how peripheral nerves connect the CNS with tissues throughout the body.
Neurons & Signaling
Zoom down to the cellular level and learn about neurons, dendrites, axons, synapses, glial cells, and neural communication.
Test Your Knowledge
Finished all five lessons? Put your understanding of the nervous system to the test with the HUMANIS final assessment.
Start broad. Finish microscopic.
Each lesson adds another layer of understanding so the anatomy becomes easier to place into context.
See the whole network
Start with how the nervous system is divided and organized.
Learn the major anatomy
Move into the brain, spinal cord, and peripheral pathways.
Zoom down to neurons
Finish by exploring the cells and communication mechanisms behind the system.