File:Fetal head section 01.jpg

From Embryology

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Human Fetal Head Week 12

This mid-line section through the early fetal head (12 weeks) shows features of the developing skull, neural (brain), face, mouth, pharynx and neck.


Neural System Endocrine Skeletal System Muscle
  • hypothalamus‎
  • pituitary sitting in the sella turcica.
    • note remnant of Rathke's pouch still visible on floor of developing sella turcica (cartilage)
  • muscle - tongue, attached to mandible, note foramen cecum.
    • genioglossus muscle - attached to mandible
    • geniohyoideus muscle - attaching hyoid bone to mandible


12 Week Images: Sagittal unlabeled | Sagittal labeled | Sagittal medial view | Sagittal lateral view | Pituitary unlabeled | Pituitary labeled | Tongue | Skull Development | Head Development


Image Source: Prof Virginia Diewert


Cite this page: Hill, M.A. (2024, March 28) Embryology Fetal head section 01.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Fetal_head_section_01.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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Date/TimeThumbnailDimensionsUserComment
current14:07, 18 March 2012Thumbnail for version as of 14:07, 18 March 20121,200 × 821 (186 KB)Z8600021 (talk | contribs)
13:23, 18 March 2012Thumbnail for version as of 13:23, 18 March 20121,200 × 821 (185 KB)Z8600021 (talk | contribs)
13:17, 18 March 2012Thumbnail for version as of 13:17, 18 March 2012965 × 660 (120 KB)Z8600021 (talk | contribs)
12:11, 18 March 2012Thumbnail for version as of 12:11, 18 March 2012965 × 660 (118 KB)Z8600021 (talk | contribs)==Human Fetal Head Week 12== Selected medial head (12 weeks) view showing key features of head musculoskeletal and neurological development. Note extensive nasal cartilage, nasal conchae, pituitary, secondary palate, oral cavity, tongue, mandible, hyoid,