The development of synapses in the pyramidal tract at the medullary level in human fetus.
The ultrastructure of synapses in the pyramidal tract in the medulla oblongata have been described in a human fetus of 220 mm C.-R. length (23 postovulatory weeks). The mature synaptic junctions and the protosynapses were found above and at the level of the pyramidal decussation.
Bruska
M
M
Department of Anatomy, University Medical School, Poznań.
Woźniak
W
W
D005314:Embryonic and Fetal Development / Q000502:physiology; D006801:Humans; D008526:Medulla Oblongata / Q000196:embryology* / Q000648:ultrastructure; D011712:Pyramidal Tracts / Q000196:embryology* / Q000648:ultrastructure; D013569:Synapses / Q000648:ultrastructure*