Biology — Stomach Acid Secretion

{
  "elements":[
    {"data":{"id":"food","label":"Food / sight / smell"}},
    {"data":{"id":"gastrin","label":"Gastrin (G cells)"}},
    {"data":{"id":"histamine","label":"Histamine (ECL cells)"}},
    {"data":{"id":"parietal","label":"Parietal cells"}},
    {"data":{"id":"proton","label":"Proton pump (H+/K+ ATPase)"}},
    {"data":{"id":"hcl","label":"HCl secreted"}},
    {"data":{"source":"food","target":"gastrin"}},
    {"data":{"source":"gastrin","target":"histamine"}},
    {"data":{"source":"gastrin","target":"parietal"}},
    {"data":{"source":"histamine","target":"parietal"}},
    {"data":{"source":"parietal","target":"proton"}},
    {"data":{"source":"proton","target":"hcl"}}
  ],
  "layout":{"name":"breadthfirst","directed":true}
}