|Embryology - 23 May 2018 Expand to Translate|
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(Anatomy and Embryology Unit, Morphological Science Department, Universitat Autònoma de Barcelona)
|Dr Mark Hill and Prof. Rosa Mirapeix in front of the human embryo collection.||Example of collection slide.|
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Development of the arterial pattern in the upper limb of staged human embryos: normal development and anatomic variations
Arterial pattern in the human upper limb "A total of 112 human embryos (224 upper limbs) between stages 12 and 23 of development were examined. It was observed that formation of the arterial system in the upper limb takes place as a dual process. An initial capillary plexus appears from the dorsal aorta during stage 12 and develops at the same rate as the limb. At stage 13, the capillary plexus begins a maturation process involving the enlargement and differentiation of selected parts. This remodelling process starts in the aorta and continues in a proximal to distal sequence. By stage 15 the differentiation has reached the subclavian and axillary arteries, by stage 17 it has reached the brachial artery as far as the elbow, by stage 18 it has reached the forearm arteries except for the distal part of the radial, and finally by stage 21 the whole arterial pattern is present in its definitive morphology. This differentiation process parallels the development of the skeletal system chronologically. A number of arterial variations were observed, and classified as follows: superficial brachial (7.7%), accessory brachial (0.6%). brachioradial (14%), superficial brachioulnar (4.7%), superficial brachioulnoradial (0.7%), palmar pattern of the median (18.7%) and superficial brachiomedian (0.7%) arteries. They were observed in embryos belonging to stages 17-23 and were not related to a specific stage of development. Statistical comparison with the rates of variations reported in adults did not show significant differences. It is suggested that the variations arise through the persistence, enlargement and differentiation of parts of the initial network which would normally remain as capillaries or even regress."
- Human embryos (224 upper limbs) belonging to the Bellaterra Collection (Prof. J. M. Domenech. Unit of Anatomy and Embryology, School of Medicine, Autonomous University of Barcelona, Spain) and the Boyd Collection (Department of Anatomy, University of Cambridge, UK) were studied.
J M Domènech-Mateu, A Arnó Palau, A Martínez Pozo [The development of the atrioventricular node and bundle of His in the human embryonic period]. [Desarrollo del nodo atrioventricular y del haz de His en el período embrionario humano.] Rev Esp Cardiol: 1993, 46(7);421-30 PubMed 8341829
O Arango-Toro, J M Domenech-Mateu Development of the pelvic plexus in human embryos and fetuses and its relationship with the pelvic viscera. Eur J Morphol: 1993, 31(3);193-208 PubMed 8217469
J M Domènech-Mateu, A Martínez-Pozo, A Arnó-Palau Development of the tendon of Todaro during the human embryonic and fetal periods. Anat. Rec.: 1994, 238(3);374-82 PubMed 8179219
F Orts Llorca, J M Domenech Mateu, J Puerta Fonolla [Typical complete transposition of the great arteries in a 19mm human embryo. A new theory of its embryogenesis]. [Trasposición típica completa de las grandes arterias (TGA) en un embrión humano de 19 mm. Una nueva teoría sobre su embriogénesis.] Rev Esp Cardiol: 1983, 36(1);81-8 PubMed 6878817
F Orts Llorca, J M Domenech Mateu, J Puerta Fonolla Innervation of the sinu-atrial node and neighbouring regions in two human embryos. J. Anat.: 1979, 128(Pt 2);365-75 PubMed 438095
J M Doménech-Mateu Development and arterial supply of the supraventricular crest during the human embryonic and fetal periods. Acta Anat (Basel): 1988, 132(2);143-9 PubMed 3414360
J M Doménech-Mateu, X Gonzalez-Compta Horseshoe kidney: a new theory on its embryogenesis based on the study of a 16-mm human embryo. Anat. Rec.: 1988, 222(4);408-17 PubMed 3228209
J Nebot-Cegarra, J M Domenech-Mateu Association of tracheoesophageal anomalies with visceral and parietal malformations in a human embryo (Carnegie stage 21). Teratology: 1989, 39(1);11-7 PubMed 2718136
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Cite this page: Hill, M.A. (2018, May 23) Embryology Domenech-Mateu Collection. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Domenech-Mateu_Collection
- © Dr Mark Hill 2018, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G