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13-week-old twin foetuses, ultrasound scans

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DR NAJEEB LAYYOUS, WWW.LAYYOUS.COM / SCIENCE PHOTO LIBRARY DR NAJEEB LAYYOUS, WWW.LAYYOUS.COM / SCIENCE PHOTO LIBRARY

Caption

Ultrasound scans of 13-week-old twin foetuses. At this stage the foetuses measure around 7.5 centimetres in length. At around this time, the brain significantly increases in mass and becomes structurally developed. Birth occurs at around 38-40 weeks. Ultrasound scanning uses the reflected echoes of high-frequency sound waves to image an unborn baby. This safe, non-invasive method is used routinely in pregnancy to assess the growth and health of the developing foetus, and detect any abnormalities.

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  • Duration: 00:00:30.08
  • Audio: No
  • Original Frame Size: 6480x480
  • Interlaced: No
  • Capture Format: Digital Image Sequence
  • Codec: MS-CRAM

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