[Formation and development of prostatic hemomicrocirculatory bed in children and young men].

Age changes of the human prostate hemomicrocirculatory bed from 20 weeks of embryogenesis up to the 22 years of age were studied by histological, histochemical and morphometric methods in 113 prostatic glands. Two types of microcirculatory systems were established to be present in human prostate by the moment of birth: microvasculo-glandular complexes in lateral and posterior regions and myomicrovascular complexes, located basically in anterior regions of the gland. During neonatal and pubertal periods, when essential changes in organ structure occur, microcirculatory bed reacts by vessels dilatation. The greatest growth of all hemomicrocirculatory bed branches occur at the age of 13-16 years. In young men widened capillaries located as processes radiating from the glandular lumen and separated from them by a single layer of secretory cells appear in initial regions of glands.