Biology — Types of Muscle

{
  "elements":[
    {"data":{"id":"muscle","label":"Muscle tissue"}},
    {"data":{"id":"skeletal","label":"Skeletal (striated, voluntary)"}},
    {"data":{"id":"cardiac","label":"Cardiac (striated, involuntary)"}},
    {"data":{"id":"smooth","label":"Smooth (non-striated, involuntary)"}},
    {"data":{"id":"bones","label":"Moves bones"}},
    {"data":{"id":"heart","label":"Pumps blood"}},
    {"data":{"id":"organs","label":"Organ walls"}},
    {"data":{"source":"muscle","target":"skeletal"}},
    {"data":{"source":"muscle","target":"cardiac"}},
    {"data":{"source":"muscle","target":"smooth"}},
    {"data":{"source":"skeletal","target":"bones"}},
    {"data":{"source":"cardiac","target":"heart"}},
    {"data":{"source":"smooth","target":"organs"}}
  ],
  "layout":{"name":"breadthfirst","directed":true}
}