Historical Review and Recent Advances - Chapter 14
نویسندگان
چکیده
Goeffery Dawes, the famous British physiologist has presented the unborn in the following way (1969): [1] "The human fetus has been likened to a spaceman; passive, insulated and preserved from stimuli, which is only half the truth. On the contrary, one could think of the mammalian embryo as a hitch-hiker with a large pack on his back getting into a rather small car; he is a friendly fellow who chatters away all the time and is prepared to do some driving if given half a chance -he takes you off your route and tells when and where he would like to get out." In the same way, the fetal circulatory system, different as it is from the child's or the adult's, cannot be dismissed with the common term "immature;" it is a system well adapted to the circumstances, and at no stage is there any evidence of any inadequate circulatory competence.
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تاریخ انتشار 2006