mouse TS23
  embryo
  cavities and their linings
  limb
  forelimb
  hindlimb
  footplate
  digit 1
  digit 2
  digit 3
  digit 4
  digit 5
  interdigital region between digits 1 and 2
  interdigital region between digits 2 and 3
  interdigital region between digits 3 and 4
  interdigital region between digits 4 and 5
  mesenchyme
  skin
  mesenchyme
  skin
  leg
  mesenchyme
  vertebral axis muscle system
  organ system
  skeleton
  tail
  extraembryonic component