File:Boyd1950 fig05.jpg

From Embryology

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Fig. 5. Sections at intervals of 30 microns through the third and fourth pharyngeal pouch derivatives of a 19 mm human embryo

The general relations of the derivatives to the vagus nerve and the carotid artery are shown. Note the intimate relationship in E. and F. between the “ventral component” ofthe fourth pouch and the developing thyroid. H. shows a small accessory parathyroid in relationship to parathyroid IV.

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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 3a | fig 3b | fig 4 | fig 5 | fig 6 | fig 7 | fig 8 | fig 9 | fig 10 | 1950 Boyd | Thyroid | Parathyroid | Thymus‎ | Historic Papers


Boyd JD. Development of the thyroid and parathyroid glands and the thymus. (1950) Ann R Coll Surg Engl. 7(6): 455-71. PMID 14790564

Cite this page: Hill, M.A. (2024, February 24) Embryology Boyd1950 fig05.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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