With regard to the turns and other adjustments of the fetus during the birth process, known as the mechanism of labor, nurses should be aware that:

a. The seven critical movements must progress in a more or less orderly sequence.
b. Asynclitism sometimes is achieved by means of the Leopold maneuver.
c. The effects of the forces determining descent are modified by the shape of the woman's pelvis and the size of the fetal head.
d. At birth the baby is said to achieve "restitution" (i.e., a return to the C-shape of the womb).


C

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A The seven identifiable movements of the mechanism of labor occur in combina-tions simultaneously, not in precise sequences.
B Asynclitism is the deflection of the baby's head; the Leopold maneuver is a means of judging descent by palpating the mother's abdomen.
C The size of the maternal pelvis and the ability of the fetal head to mold also af-fect the process.
D Restitution is the rotation of the baby's head after the infant is born.

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