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T Todros

Publications and source records attributed to T Todros.

81 records · Page 5Linked to original sources
PubMedDate not supplied

Fetal motor activity and spine development.

The Authors, on the basis of previous data obtained by ultrasonography, analysed more closely the quantitative and qualitative correlations between movements and spine development in the human fetus. The bending angles of cervical lordosis and thoracic kyphosis showed a trend directly and inversely proportional, respectively, to the trend of the overall motility of the fetus, measured as the percentage of time employed by the fetus in motor activity. The trend of the lumbo-sacral angle, that appears later, seemed to be less related to the motor behaviour of the fetus, while the bending angle of lumbar lordosis increases very rapidly when also the fetal motility shows an increase at 25-30 weeks. The significance that the developmental stages and the actions of the muscles involved in early fetal motility, and particularly in spine movements, have in the ossification and in the postural attitude of the axial skeleton, was finally discussed.

Embryonic and Fetal Development↗
PubMedDate not supplied

Study of a regional circulatory system based on the "equivalent tube" concept: the feto-placental circulation.

The fluid-dynamical description of a regional circulatory system, based on the numerical solution of the dynamical equations applied to an equivalent tube is proposed. The feto-placental circulation is explicitly studied with this technique as an example, and results are discussed and compared with experimental data. The original features of this work are the quantitative description of the terminal load of the vascular system on the basis of morphological data and the attention paid to the formulation of physiologically sensible boundary conditions for the dynamical equations.

Aorta, Abdominal↗