File:Fetal head section 01.jpg

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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, choana, oropharynx. Also note the developing tongue musculature and its mandibular attachment site.


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


This mid-line section through the fetal head shows features of the developing skull and the brain, face and mouth.

Neural System

Endocrine

  • hypothalamus
  • pituitary sitting in the sella turcica.
    • note remnant of Rathke's pouch still visible on floor of developing sella turcica (cartilage)

Skeletal System

Muscle

  • muscle - tongue, attached to mandible, note foramen cecum.
    • genioglossus muscle - attached to mandible
    • geniohyoideus muscle - attaching hyoid bone to mandible


Image Source: Prof Virginia Diewert


Cite this page: Hill, M.A. (2024, April 18) 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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current13:07, 18 March 2012Thumbnail for version as of 13:07, 18 March 20121,200 × 821 (186 KB)Z8600021 (talk | contribs)
12:23, 18 March 2012Thumbnail for version as of 12:23, 18 March 20121,200 × 821 (185 KB)Z8600021 (talk | contribs)
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11:11, 18 March 2012Thumbnail for version as of 11:11, 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,