Biology — Chemoreceptor Control of Breathing

{
  "elements":[
    {"data":{"id":"co2","label":"Rising CO2 / falling O2"}},
    {"data":{"id":"receptor","label":"Chemoreceptors (carotid/aortic)"}},
    {"data":{"id":"medulla","label":"Respiratory centre (medulla)"}},
    {"data":{"id":"rate","label":"Increase breathing rate"}},
    {"data":{"id":"restore","label":"Gas levels restored"}},
    {"data":{"source":"co2","target":"receptor"}},
    {"data":{"source":"receptor","target":"medulla"}},
    {"data":{"source":"medulla","target":"rate"}},
    {"data":{"source":"rate","target":"restore"}}
  ],
  "layout":{"name":"breadthfirst","directed":true}
}