File:Stage22 embryo and brain 01.jpg
From Embryology
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Human Embryo Carnegie Stage 22 and Neural Tube Model
The embryo and how the brain and spinal cord appears during week 8 after fertilisation (Gestational Age - GA week 10).
- Left - surface view of a human embryo Week 8.
- Right - model of neural tube surface appearance at this time. Note the overall shape and relative sizes of different regions.
- Gestational Age - is the clinical staging term of human development measured from the last menstrual period (indicating when the mother was not pregnant) not from fertilisation (about the time of ovulation of the next cycle).
- Brain and Neural Tube Links: K12 Brain Awareness Week | Week 5 | Week 6 | Week 8 | Neural Development
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