mouse TS23
embryo
cavities and their linings
limb
mesenchyme
vertebral axis muscle system
organ system
gland
visceral organ
alimentary system
liver and biliary system
common bile duct
cystic duct
gall bladder
hepatic duct
liver
renal/urinary system
reproductive system
respiratory system
nervous system
integumental system
sensory organ
cardiovascular system
skeleton
tail
extraembryonic component