File:Stage 22 image 217.jpg: Difference between revisions

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Human Embryo Developing Cortex

Human embryo, Week 8, Carnegie stage 22.
Section from the neural tube at the level of the developing cortex.
Inset (upper right) shows section overview and approximate level of section (red line).
Developing cerebrum layer thicknesses are shown in microns.

The thin layer outer called cortical plate will eventually form the adult brain cortex. The other underlying layers are part of the development process and will continue to supply cells to the cortex through fetal period, these layers will eventually be almost completely lost.

The ventricle is the CSF fluid-filled space within the brain. The inset image shows lying within the ventricles, part of the choroid plexus that forms and secretes the CSF.

Outside the developing cortex the developing brain meninges can also be seen.

Links: Image - cortex overview | Image - cortex layers | Image - high resolution version | Cerebrum Development

Note this section image is vertically flipped compared with original serial section images.

Selected Embryo Histology - Week 8 (Stage 22)
Selected Human Embryo Histology - Stage 22 (week 8) developing cortex labeled central nervous system and ventricles central nervous system and ventricles measured image nose and eyes eye optic nerve lens lens and pigmented epithelium lens and pigmented epithelium head region measured developing cochlea pituitary pituitary measured pituitary vertebra and spinal cord mesonephric ducts and bladder developing testis developing testis labeled developing testis developing testis labeled midgut herniation pelvic region - rectum and bladder pelvic region - rectum and bladder labeled pelvic region - rectum pelvic region - rectum labeled Aorta filled with red blood cells Lungs and thymus Dorsal aorta Placental blood vessels
Links: Carnegie stage 22 \| Week 8

Carnegie Stages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | About Stages | Timeline

Cite this page: Hill, M.A. (2024, April 19) Embryology Stage 22 image 217.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Stage_22_image_217.jpg

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current	01:09, 23 August 2011		1,200 × 820 (323 KB)	S8600021 (talk \| contribs)	==Human Embryo Developing Cortex== * Week 8, Carnegie stage 22 * Note this section image is vertically flipped compared with serial original serial images. :Links: Neural System Development Cortex-with-section-insert-4.jpg (scan 35815 cropped and sc

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Revision as of 11:39, 15 December 2016 (view source) Z8600021 (talk \| contribs) mNo edit summary ← Older edit		Revision as of 11:40, 15 December 2016 (view source) Z8600021 (talk \| contribs) mNo edit summary Newer edit →
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	The [[Neural_-_Ventricular_System_Development\|ventricle]] is the CSF fluid-filled space within the brain. The inset image shows lying within the ventricles, part of the '''choroid plexus''' that forms and secretes the CSF.		The [[Neural_-_Ventricular_System_Development\|ventricle]] is the CSF fluid-filled space within the brain. The inset image shows lying within the ventricles, part of the '''choroid plexus''' that forms and secretes the CSF.

	Outside the developing cortex the brain meninges can also be seen.		Outside the developing cortex the developing [[Neural - Meninges Development\|brain meninges]] can also be seen.