File:Streeter1906 plate01.jpg

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Description of Plates I

The drawings for Plates I and II were prepared under the guidance and assistance of Mr. Max Brodel.

The reproductions shown. on these plates represent different views, in most cases lateral, front, and median, of seven selected models showing the membranous labyrinth and acoustic complex reconstructed from the following human embryos: No. 148, 4.3 mm.; No. *17, 6.6 mm.; No. 163, 9 mm:; No. 109, 11 mm.; No. 175, 13 mm.; No. 22, 20 mm.; Plate 2 - No. 86, 30 mm.

The colors, yellow and red, are used to indicate respectively the cochlear and vestibular divisions, and in general nerve flbers can be distinguished from ganglion cell masses by their lighter tone.

The pictures represent a magniflcation of 25 diams.

The following abbreviations are used:
  • absorpt. focus - area of wall where absorption is complete.
  • amp. - ampulla membranacea.
  • crus - crus commune.
  • - ductus semicircularis lateralis.
  • c. sc. post. - ductus semicircularis posterior.
  • c. sc. sup. - ductus semicircularis superior.
  • coch.orcochlea - ductus cochlearis.
  • duct. endolymph. - ductus endolymphaticus.
  • d. reuniens - ductus reuniens Henseni.
  • endol. or endolymph. - appendix endolymphaticus.
  • rec. utr. - recessus utriculi.
  • sacc. - sacculus.
  • sac. endol. - saccus endolymphaticus.
  • sinus utr. lat. - sinus utriculi lateralis.
  • utric. - utriculus.
  • vestib.p. - vestibular pouch.

Historic Disclaimer - information about historic embryology pages 
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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)
Mall 1906 Links: Fig 1. 14mm Embryo | Fig 2. 30mm Embryo | Fig 3. Semicircular canal | Fig 4. Membranous Labyrinth | Fig 5. Acoustic nerve complex | Fig 6. Facial-acoustic Complex | Fig 7. Facial Nerve Pig Embryo 20 cm | Fig 8. Geniculate Ganglion | Plate 1. Human Embryo 4 to 20 mm | Plate 2. Human Embryo 30 mm | Membranous Labyrinth and Nerves


Streeter GL. On the development of the membranous labyrinth and the acoustic and facial nerves in the human embryo. (1906) Amer. J Anat. 6:139-165.

Cite this page: Hill, M.A. (2024, February 21) Embryology Streeter1906 plate01.jpg. Retrieved from

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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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