File:Fetal head section 01.jpg: Difference between revisions

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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.

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

Neural System

central nervous system.
hypothalamus
lamina terminalis (site of anterior neuropore closure).
fourth ventricle, ventricular space behind the pons and medulla.
brainstem - pons and medulla
basilar artery - lying ventral to the pons

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

cartilage - skull septum of the nose.
bone - upper respiratory ossifying nasal concha.
bone - hard palate roof of mouth.
cartilage - soft palate back of mouth.
cartilage - base of skull and vertebra.
bone - mandible.
axial skeleton - vertebra, axis and atlas.

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 25) 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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	Date/Time	Dimensions	User	Comment
current	13:07, 18 March 2012	1,200 × 821 (186 KB)	Z8600021 (talk \| contribs)
	12:23, 18 March 2012	1,200 × 821 (185 KB)	Z8600021 (talk \| contribs)
	12:17, 18 March 2012	965 × 660 (120 KB)	Z8600021 (talk \| contribs)
	11:11, 18 March 2012	965 × 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,

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@@ Line 24: / Line 24: @@
 ** note remnant of Rathke's pouch still visible on floor of developing sella turcica (cartilage)
 | valign=top|
-===Musculoskeletal System===
+===Skeletal System===
 * [[Musculoskeletal_System_-_Cartilage_Development|cartilage]] - [[Musculoskeletal_System_-_Skull_Development|skull]] septum of the nose.
 * [[Musculoskeletal_System_-_Bone_Development|bone]] - [[Respiratory_System_-_Upper_Respiratory_Tract|upper respiratory]] ossifying nasal concha.
@@ Line 30: / Line 30: @@
 * [[Musculoskeletal_System_-_Cartilage_Development|cartilage]] - [[Palate_Development|soft palate]] back of mouth.
 * [[Musculoskeletal_System_-_Cartilage_Development|cartilage]] - base of skull and vertebra.
+* [[Musculoskeletal_System_-_Bone_Development|bone]] - [[Musculoskeletal_System_-_Skull_Development#Mandible_Development|mandible]].
+* [[Musculoskeletal_System_-_Axial_Skeleton_Development|axial skeleton]] - vertebra, axis and atlas.
+| valign=top|
+===Muscle===
 * [[Musculoskeletal_System_-_Muscle_Development|muscle]] - [[Tongue Development|tongue]], attached to mandible, note foramen cecum.
 ** genioglossus muscle - attached to mandible
 ** geniohyoideus muscle - attaching hyoid bone to mandible
-* [[Musculoskeletal_System_-_Bone_Development|bone]] - mandible.
-* [[Musculoskeletal_System_-_Axial_Skeleton_Development|axial skeleton]] - vertebra, axis and atlas
 |}