Biology — The Stretch Reflex

{
  "elements":[
    {"data":{"id":"stretch","label":"Muscle stretched"}},
    {"data":{"id":"spindle","label":"Muscle spindle"}},
    {"data":{"id":"sensory","label":"Sensory neuron"}},
    {"data":{"id":"cord","label":"Spinal cord (monosynaptic)"}},
    {"data":{"id":"motor","label":"Motor neuron"}},
    {"data":{"id":"contract","label":"Muscle contracts"}},
    {"data":{"source":"stretch","target":"spindle"}},
    {"data":{"source":"spindle","target":"sensory"}},
    {"data":{"source":"sensory","target":"cord"}},
    {"data":{"source":"cord","target":"motor"}},
    {"data":{"source":"motor","target":"contract"}}
  ],
  "layout":{"name":"breadthfirst","directed":true}
}