integumentary system
  skin
  - ::: human palm skin (HSM0087, Masson trichrome)
  - ::: human palm skin (HSM0280, orcein)
  - ::: human palm skin (HSM0276, PAS)
  - ::: human palm skin (HSM0277, Wilder)
  - ::: human abdominal black skin (HGM004, Masson trichrome)
  - ::: human abdominal black skin (HGM005, Fontana)
  - ::: human forehead skin (HGM0006, Masson trichrome)
  - ::: human axillary skin (HSM0295, Masson trichrome)
  - ::: human scalp skin (HSM0289, Masson trichrome)
  - ::: human scalp skin (HSM0292, Masson trichrome)
  - ::: calf muzzle (HSV0005, Masson trichrome)
  - ::: pig snout (HSV0007, HE & saffron)
  - ::: rabbit skin (HSV1004, HE & saffron)
  - ::: pig skin (HSV0108, HE & saffron)
  - ::: pigeon foot skin (HGM0008, Masson trichrome)
  - ::: chicken skin (HSV0019, HE & saffron)
  - ::: horse leg skin (HSV0105, Masson trichrome)
  - ::: horse leg skin (HSV0106, Masson trichrome)
  
 skin appendages
 - nail
  - hair
  - hoof
  - specials
  - mammary gland
  - eyelid