Fetal Development - 10 Weeks
Introduction
This page is a link to images from a 10 week female fetus approximately 40 mm in size. This stage of development is after the embryonic period (up to week 8), but only 2 weeks into early fetal development. To see other images from this early fetal stage see Category:Week 10.
The fetal period is a time of extensive growth in size and mass as well as differentiation of organ systems established in the embryonic period. In particular, the brain continues to grow and develop, the respiratory system differentiates, the urogenital system further differentiates between male/female, endocrine and gastrointestinal tract begins to function.
Compare this 10 week fetus with the earlier Carnegie stage embryos: size, head/body proportions, brain, head, skeletal development. Note that in the early fetus the midgut remains herniated and will only be taken into the peritoneal cavity on further body wall growth.
Fetal Links: fetal | Week 10 | Week 12 | second trimester | third trimester | fetal neural | Fetal Blood Sampling | fetal growth restriction | birth | birth weight | preterm birth | Developmental Origins of Health and Disease | macrosomia | BGD Practical | Medicine Lecture | Science Lecture | Lecture Movie | Category:Human Fetus | Category:Fetal | |||
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Human Fetus female midline image (plane D, H&E stain). See also Large Image Version
Note - the midgut herniation still present, pelvic urogenital development, palate development.
Related Images
Fetus (week 10) Planes A (most lateral), B (lateral), C (medial) and D (midline) from lateral towards the midline.
- Human Fetus - most lateral | lateral | medial | midline
- Head - most lateral | lateral | medial | midline
- Cerebellum - most lateral | lateral | medial | midline
- Urogenital Unlabelled - most lateral | lateral | medial | midline
- Urogenital Labelled - most lateral | lateral | medial | midline
- Large Images - midline
- Image Source: UNSW Embryology, no reproduction without permission.
10 Week 40mm Fetus
There are 4 sections taken in the sagittal plane (moving from the right at Plane A towards the midline at Plane D). Click on the small images (or the text below) to open the linked large image pages.
Plane A (midline) | Plane B (medial) |
Plane C (lateral) | Plane D (most lateral) |
10 Week Fetal Head
Plane A (midline) | Plane B (medial) |
Plane C (lateral) | Plane D (most lateral) |
10 Week Fetal Cerebellum
Plane A (midline) | Plane B (medial) |
Plane C (lateral) | Plane D (most lateral) |
10 Week Fetal Urogenital
Plane A (midline) | Plane B (medial) |
Plane C (lateral) | Plane D (most lateral) |
Plane A (midline) | Plane B (medial) |
Plane C (lateral) | Plane D (most lateral) |
- Links: Renal System Development | Genital - Female
Additional Images
References
Reviews
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Articles
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Note: Week 10 post-fertilization age (used throughout this current website) is Week 12 gestational age (LMP). Searches for clinical Week 12 gestational age will match this post-fertilization age.
Search PubMed Now: week 10 fetus | week 12 fetus
Glossary Links
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Cite this page: Hill, M.A. (2024, June 20) Embryology Fetal Development - 10 Weeks. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Fetal_Development_-_10_Weeks
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G