mouse TS23
  embryo
  cavities and their linings
  limb
  mesenchyme
  vertebral axis muscle system
  organ system
  gland
  visceral organ
  nervous system
  integumental system
  muscle
  gland
  rest of skin
  cervical sinus
  dermis
  epidermis
  vibrissa:  04  05  06  07  20  21  22  23 
  dermal component
  epidermal component
  physiological umbilical hernia
  sensory organ
  cardiovascular system
  skeleton
  tail
  extraembryonic component