File:Dickie1914 fig06.jpg

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Fig. 6. Model of the upper air passages

Nasal cavities form top of the model. At the side is a groove corresponding with palatal process. Further down middle ear recess is seen, and beyond that the cavity narrows into the oesophagus.

i, Palatal process

ii, sulcus tubo-tympanicus

iii, eminentia cochlearis

iv, second visceral pouch


The buccopharyngeal cavity (fig. 6) is widest at the angle of the mouth. From this point backwards it narrows rapidly to the level of the middle ear recess, where it again widens, and behind which it tapers away gradually into the (esophagus, the lumen of which is uniformly narrow. The cavity as a whole is curved on itself, with a ventral concavity, to the extent of about half a circle.


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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)
Links: Fig 1 | Fig 2 | Fig 3 | Fig 4 | Fig 5 | Fig 6 | Fig 7 | Fig 8 | Fig 9 | Fig 10


Reference

Dickie JK. The anatomy of the head end of a 20 mm human embryo. (1914) J Anat Physiol., 48(4): 445-60. PMID 17233010



Cite this page: Hill, M.A. (2024, May 30) Embryology Dickie1914 fig06.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Dickie1914_fig06.jpg

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