[Organogenesis of the limb skeleton and the limb joints in the human embryo].

The development of the skeleton and limbs joints of embryo and fetus of 5.5-9 weeks has been studied. The organogenesis of the anlages of bones is completed by the end of the embryonal period, when every of them can be identified clearly according to there characteristic features of anatomic structure. The linear size of the anlages of bones are changed in fetus period. The structures are proximal grow quicker. In connection this the qualitative ratio between the elements stylopodium, zeugopodium, autopodium is changed gradually while growing. In the embryonal period the cartilaginous anlages of bones separated each other densely cellular avascular interzones. Since the beginning of fetus period the synovial cavity is formed. The synovial cavity formation in time coincides with morphofunctional differentiation muscles of limbs and there innervation.