File:Bast1931 plate01.jpg

From Embryology
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Plate 1 Model of internal ear of a 150 mm (C.R.) human fetus

This is a drawing of part of a model of the internal ear of a 150 mm (C.R.) human fetus, age about eighteen and one-half weeks. It is drawn to show the arterial blood supply to the otic capsule.

The periotic labyrinth is shown in yellow, the ossified portion of the capsule in black, and the arteries in red.

The numbers 1, 2, 3, 4, 8, and 10 represent the approximate point of origin of the corresponding ossification centers (Bast, ’30).

The part of the capsule which is still cartilage is not drawn.

Fetal CRL 150 mm is Week 16 GA week 18.

Reference

Bast TH. Blood supply of the otic capsule of a 150 mm (C.R.) human fetus. (1931) Anat. Rec. 48: 141-151.

Bast TH. Ossification of the otic capsule in human fetuses. (1930) Contrib. Embryol., Carnegie Inst. Wash. 121, Publ. 407, 53-82.


Cite this page: Hill, M.A. (2019, February 18) Embryology Bast1931 plate01.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Bast1931_plate01.jpg

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© Dr Mark Hill 2019, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

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