Cell loss in the trochlear nucleus of the chick during normal development and after radical extirpation of the optic vesicle.
D000818:Animals; D001921:Brain / Q000473:pathology*; D002642:Chick Embryo; D009474:Neurons; D009899:Optic Lobe, Nonmammalian / Q000502:physiology; D011200:Poultry; D014321:Trochlear Nerve / Q000166:cytology / Q000473:pathology*