In the last third of the gestation period, 90% of fetal growth occurs.

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Question restatement: The statement asserts that in the last third of gestation, 90% of fetal growth occurs. Answer options are: True; False.
Option 1: True. This aligns with obstetric understanding that the third trimester is when rapid fetal growth and maturation occur, contributing the majority of fetal mass and weight by term. While exact percentages can vary by source and measurement (weight versus length), many references note that a substantial, often dominant, portion of fetal growth occurs during the final trimester, with figures commonly cited around the 80–90% range for weight gain. Therefore, describing 90% of growth occurring in the last third captures the consensus that the late stage is when most growth happens.
Option 2: False. This would be incorrect if one accepts the standard view that the third trimester accounts for the bulk of growth. Claiming that less than this occurs contradicts typical data showing marked acceleration of fetal size and weight in the final weeks. It would be an inaccurate portrayal of growth dynamics during late gestation, given the rapid accumulation of fetal mass and maturation during this period.
In summary, the statement emphasizes that the majority of growth is concentrated in the last third of gestation, which is generally supported by obstetric growth patterns, making the False option inconsistent with established understanding.

ANSC 1403 (001) Exam 2

In the last third of the gestation period, 90% of fetal growth occurs.

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