Fig. 472. From a section through the head of a human embryo of 28 mm
Showing the nasal septum, the nasal cavities, the oral cavity, and the palatine processes.
Jacobson's organ arises at the beginning of the third month as a small outpocketing of the epithelium on the lower anterior part of the nasal septum (Fig. 472). This evagination grows backward as a slender sac along the nasal septum for a distance of several millimeters and ends blindly. In the adult the sac degenerates and often disappears. In some of the lower Mammals Jacobson's organ develops to a greater degree, and some of the epithelial cells send out processes which pass to the olfactory lobes.
- Links: Historic terminology
|Historic Disclaimer - information about historic embryology pages|
|Embryology History | Historic Embryology Papers)|
Text-Book of Embryology: Germ cells | Maturation | Fertilization | Amphioxus | Frog | Chick | Mammalian | External body form | Connective tissues and skeletal | Vascular | Muscular | Alimentary tube and organs | Respiratory | Coelom, Diaphragm and Mesenteries | Urogenital | Integumentary | Nervous System | Special Sense | Foetal Membranes | Teratogenesis | Figures
- 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. (2019, March 26) Embryology Bailey472.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Bailey472.jpg
- © Dr Mark Hill 2019, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
Click on a date/time to view the file as it appeared at that time.
|current||14:48, 1 February 2011||797 × 518 (105 KB)||S8600021|
- You cannot overwrite this file.