File:Keibel Mall 309.jpg

From Embryology

Keibel_Mall_309.jpg(687 × 479 pixels, file size: 52 KB, MIME type: image/jpeg)

Fig. 309 Human Embryo Skull

Membranous skull of an embryo 14 mm long.

The tissue of the capsules of the labyrinth increases in amount as the labyrinth becomes differentiated. The tissue which encloses the region of the semicircular canals and the vestibule forms an oval mass the outlines of which do not conform to that of the enclosed canals (Fig. 309). This tissue is less dense than most parts of the membranous skeleton of the head and at an early period becomes transformed into embryonic cartilage (see p. 407). The cochlear portion of the labyrinth (Fig. 310) is enclosed by a dense mesenchyme which becomes converted into cartilage at a later period. lateral from the nasal fossa the tissue becomes generally somewhat condensed, though less so than the tissue in the septum. In the perinasal tissue condensation gradually marks out the lateral and ventral portions of the nasal capsule and the membranous floor of the ethmoidal and orbital portions of the cranial cavity (Fig. 310). From the lateral wall membranous processes project into the nasal fossa. These are the anlages of the conchae.

KM Figure Links: The Germ Cells | Segmentation | First Primitive Segment | Gastrulation | External Form | Placenta | Axial Skeleton | Limb Skeleton | Skull | Muscular System

   Manual of Human Embryology I 1910: The Germ Cells | Fertilization | Segmentation | First Primitive Segment | Gastrulation | External Form | Placenta | Human Embryo and Fetus Age | Ovum Pathology | Integument | Skeleton and Connective Tissues | Muscular System | Coelom and Diaphragm | Figures | Manual of Human Embryology 1 | Manual of Human Embryology 2 | Franz Keibel | Franklin Mall | Embryology History

Historic Disclaimer - information about historic embryology pages 
Mark Hill.jpg
Pages where the terms "Historic" (textbooks, papers, people, recommendations) appear on this site, and sections within pages where this disclaimer appears, indicate that the content and scientific understanding are specific to the time of publication. This means that while some scientific descriptions are still accurate, the terminology and interpretation of the developmental mechanisms reflect the understanding at the time of original publication and those of the preceding periods, these terms, interpretations and recommendations may not reflect our current scientific understanding.     (More? Embryology History | Historic Embryology Papers)

Glossary Links

Glossary: A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Numbers | Symbols | Term Link

Cite this page: Hill, M.A. (2024, June 19) Embryology Keibel Mall 309.jpg. Retrieved from

What Links Here?
© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

File history

Yi efo/eka'e gwa ebo wo le nyangagi wuncin ye kamina wunga tinya nan

current09:00, 27 August 2012Thumbnail for version as of 09:00, 27 August 2012687 × 479 (52 KB)Z8600021 (talk | contribs)==Fig. 309 Human Embryo Skull== Membranous skull of an embryo 14 mm long. {{Keibel_Mall Images}} Category:Human Category:Human Embryo Category:Musculoskeletal Category:Bone Category:Skull