[Microtubules and their relationship with the subsynaptic structures and the nuclear membrane in human neuroblasts].

The appearance of microtubules and the development of their interrelations with the synaptic area and the nuclear envelope in differentiating neuroblasts from the anterior horn of the spinal cord in the first half of human antenatal ontogenesis was traced by methods of electron microscopy. A hypothesis was put forward on the functional purpose of the above interrelations between the microtubules with the subsynaptic area of the neuroblast and its nucleus.