The vomeronasal organ (VO) or the second olfactory organ has the form of paired epithelial pockets at the base of the nasal septum. In animals it has various functions including reception of pheromones mediating sexual, parental and social behavior. Human VO was considered to be rudimental until the last decade of the XXth century. Since then it was found… (More)
Histological and morphometrical analysis of the brain and peripheral analyzers revealed proliferative migration abnormalities of brain development and neuron differentiation in mammals during a space flight, which can limit space exploration.
Age-related changes in the organon vomeronasalis (VO) and related structures have been described in normal human embryos of 19, 25, 28 and 40 mm in crown-rump length and in the embryo of 19 mm in crown-rump length during abnormal development in the uterine tube. The fourth branch of the VO nerve appeared in the 25 mm embryo. Signs of asymmetry and… (More)
We studied the origin and development of the vomeronasal system in early human embryos of 10-18 mm crown-rump length under normal and pathological conditions. The formation of the vomeronasal organ from the vomeronasal groove and placode in a 10-mm embryo is described. We propose that the vomeronasal cavity originates in the schizocoel way. We studied the… (More)