Lesson 1
The cells in the middle
Inter means between. Interneurons sit between other neurons, inside your brain and spinal cord.
They come in many shapes. Many are small and bushy, with short branches that reach nearby cells.
Wow!Most of the neurons in your brain are interneurons. They are busy talking to each other all day and all night!
Lesson 2
Connecting and deciding
Sensory neurons bring news in. Motor neurons send orders out. Interneurons sit in the middle and help decide what happens next.
- Some pass a message along quickly, like when you jerk your hand away from something hot.
- Some say go, and some say stop. The stop messages keep your brain calm and your movements smooth.
Try thisPress Connect the message on the 3D model to see a message go from one neuron, through the interneuron, to another.