Template:BGDA Practical - Week 6 movies table

From Embryology
Week 6 Embryo - Stage 16 Movies  

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These Week 6 movies shows the appearance of human embryo at Carnegie stage 16 (GA week 8).

Embryo Surface - Carnegie Stage 16

This movie shows an unlabeled MRI 3D volume embryo scan of the Kyoto embryo (stage 16, week 6). Compare this with the earlier stage 13 week 4 embryo.

Note:

  • Growth of limb buds
  • Size of the head
  • Pharyngeal arches
  • Size and position of the heart
  • Umbilicus containing cord with placental blood vessels

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Neural Development

This labelled version shows the Stage 16 embryo rotating with the CNS spinal cord and the secondary brain vesicles and flexures labeled.

Note:

  • Growth of limb buds.
  • Development of the vision and hearing sensory vesicles (optic and otic) and their relative positions (optic at the diencephalon; otic at the metencephalon).
  • The lamina terminalis at the end of the neural tube (site of cranial/anterior neuropore closure).
  • The 5 secondary brain vesicles.
  • The large ventricular space within the tube, divided into future regions.
  • The lateral walls of the neural tube forming alar and basal plates (particularly obvious along spinal cord).
  • The top and bottom of the neural tube forming thin roof and floor plates (particularly obvious along spinal cord).
  • The large dorsal root ganglia along the length of the spinal cord.
  • The 3 brain flexures; cephalic (or mesencephalic), pontine and cervical.

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Sagittal Sections

This movie shows an unlabeled MRI sagittal scan passing from right to left through the Kyoto embryo (stage 16, week 6). Compare this with the earlier week 4 stage 13 embryo CNS.

Note:

  • Growth of limb buds.
  • Development of the vision and hearing sensory vesicles (optic and otic) and their relative positions (optic at the diencephalon; otic at the metencephalon).
  • The lamina terminalis at the end of the neural tube (site of cranial/anterior neuropore closure).
  • The 5 secondary brain vesicles.
  • The large ventricular space within the tube, divided into future regions.
  • The lateral walls of the neural tube forming alar and basal plates (particularly obvious along spinal cord).
  • The top and bottom of the neural tube forming thin roof and floor plates (particularly obvious along spinal cord).
  • The large dorsal root ganglia along the length of the spinal cord.
  • The 3 brain flexures; cephalic (or mesencephalic), pontine and cervical.
Stage16 MRI 3D01 icon.jpg
 ‎‎Embryo Stage 16
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Stage16 MRI 3D02 icon.jpg
 ‎‎Embryo CNS
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Stage16 MRI S01 icon.jpg
 ‎‎Embryo Stage 16
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Stage 16 Movies: MRI Surface | MRI Surface (labeled) | MRI Central Nervous System | MRI CNS (labeled) | MRI Sagittal | MRI Transverse | MRI Coronal | EFIC Sagittal | EFIC Transverse | EFIC Coronal | EFIC Coronal (label) |


BGDA Week 4 Movies | BGDA Week 6 Movies | BGDA Week 8 Movies