Fetal Development - 10 Weeks

From Embryology
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Introduction

Embryo/Fetus Size Comparison

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
Historic Embryology  
1940 Fetus Physiology
Carnegie Fetal: 95 | 96 | 142 | 145 | 184 | 211 | 217 | 300 | 362 | 448 | 449 | 538 | 590 | 607 | 625 | 662 | 693 | 847 | 858 | 922 | 928 | 948 | 972 | 1318 | 1388 | 1455 | 1591 | 1597b | 1656 | 1686 | 2250a | 2250b | 3990 | 5652 | 6581 | 7218

Related Images

Human- fetal week 10 planes icon.jpg

Fetus (week 10) Planes A (most lateral), B (lateral), C (medial) and D (midline) from lateral towards the 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.

Human- fetal week 10 sagittal plane A.jpg Human- fetal week 10 sagittal plane B.jpg
Plane A (midline) Plane B (medial)
Human- fetal week 10 sagittal plane C.jpg Human- fetal week 10 sagittal plane D.jpg Plane C (lateral) Plane D (most lateral)

10 Week Fetal Head

Human- fetal week 10 head A.jpg Human- fetal week 10 head B.jpg
Plane A (midline) Plane B (medial)
Human- fetal week 10 head C.jpg Human- fetal week 10 head D.jpg Plane C (lateral) Plane D (most lateral)