Template:BGDA Practical - Week 4 movies table

From Embryology
Week 4 Embryo - Stage 13 Movies  

<html5media height="600" width="500">File:Stage 13 MRI 3D04.mp4</html5media>

Week 4 Embryo surface view

Week 4 Stage 13 embryo shown as rotating with surface details.


  • head region is the neural tube covered in a thin layer of surface ectoderm.
  • pharyngeal arches in head region that will develop into head and neck structures.
  • heart is large and in the form of an "S" shaped tube.
  • somites can be seen along the length of the embryo body.
  • limb buds have begun to develop.
<html5media height="700" width="500">File:Stage 13 MRI 3D03.mp4</html5media>

Click Here to play on mobile device

Central Nervous System

Week 4 Stage 13 embryo shown as rotating with details of the CNS brain and spinal cord.


  • brain - vesicles and primary brain flexures.
  • heart
  • liver
<html5media height="600" width="500">File:Stage 13 MRI_S02.mp4</html5media>

Click Here to play on mobile device


This movie shows sagittal sections through the Stage 13 week 4 human embryo region of the pharyngeal arches (contributing to head and neck development) and the heart.

Stage13 MRI 3D03 icon.jpg
 ‎‎Embryo Stage 13
Page | Play
Stage13 MRI 3D02 icon.jpg
 ‎‎Embryo CNS
Page | Play
Stage 13 MRI S01.jpg
 ‎‎Heart Sag MRI
Page | Play
Stage 13 EFIC01.jpg
 ‎‎Sagittal EFIC
Page | Play
Stage 13 Movies: MRI Embryo | MRI Embryo (label) | Central Nervous System | Central Nervous System (labeled) | Heart | Heart (labeled) | Sagittal EFIC | Carnegie stage 13 | Kyoto Collection

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