File:Stage 22 image 220.jpg

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Developing Pituitary - Human Embryo Carnegie stage 22

  • 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.


Pituitary Links: Image - Pituitary | Image - Pituitary Measured | Endocrine - Pituitary Development | Carnegie stage 22 | Image - Low resolution Plane of Section | Image - Low resolution Pituitary


Selected Embryo Histology - Week 8 (Stage 22)  
Links: Carnegie stage 22 | Week 8

Image Source: UNSW Embryology, no reproduction without permission.


Cite this page: Hill, M.A. (2024, April 24) 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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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

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