[Morphologic study of the hematopoietic organs of rats during hypokinesia].

During 60-day hypokinesia the hemopoietic system of rats developed important changes typical of the stress-state (atrophy of thymico-lymphatic system, lymphopenia and neutrophilosis) and hypokinesia per se (activation at the early stage and inhibition at the late stage of bone marrow erythropiesis, reduction of the rate of lympho- and myelopoiesis by the end of the experiment, emergence of pathologically changed megakaryocytes).