Biology · Human Reproduction
Which of the following statements regarding embryological and fetal length measurement parameters is anatomically CORRECT?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Both crown-rump and crown-heel lengths are structurally identical and used interchangeably throughout all trimesters.
- 2Crown-rump length is measured from the vertex to the lowest point of the coccyx and is highly accurate for dating up to the early part of pregnancy.✓
- 3Crown-heel length is measured from the vertex to the coccyx in early embryonic stages.
- 4Crown-rump length is measured from vertex to heel in the late third trimester.
Correct answer
Crown-rump length is measured from the vertex to the lowest point of the coccyx and is highly accurate for dating up to the early part of pregnancy.
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