File:Stage 22 image 220.jpg: Difference between revisions

Latest revision as of 11:44, 14 June 2016

Human embryo Week 8, Carnegie stage 22
inset bottom right shows the complete head cross-section and approximate level of the plane.
- note the sphenoid "saddle" - only cartilage at this stage.
- trigeminal ganglia (CN V) and internal carotid arteries lateral to pituitary in complete head cross-section.
orientation - ventral is bottom of image, dorsal is top.
inset cross-section scale bar 1 mm.
measured regions are shown in microns.
neurohypophysis (posterior pituitary) containing hypothalamic recess.
adenohypophysis (anterior pituitary) containing developing blood vessels of local circulation.

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

Image Source: UNSW Embryology, no reproduction without permission.

Cite this page: Hill, M.A. (2024, May 5) Embryology Stage 22 image 220.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Stage_22_image_220.jpg

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-A7/B2 - Scan 35805
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 [[Category:Indexed pages]] [[Category:Human Embryo]] [[Category:Carnegie Stage]] [[Category:Carnegie Stage 22]] [[Category:Week 8]] [[Category:Endocrine]] [[Category:Pituitary]]