File:Congdon1922-18-25.jpg: Difference between revisions
From Embryology
(==Figs. 18 to 25. The descent of the fourth aortic arch and the definitive aortic arch into the thorax== Shown in relation to the cervical vertebrae and ribs. Legend * Asterisk - so-called fifth aortic arch * 4 - fourth aortic arch * d. a. - definitive) |
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In figures 21 and 25 the bands have met and the arch has become sharply bent by the swinging dorsally of the heart. | In figures 21 and 25 the bands have met and the arch has become sharply bent by the swinging dorsally of the heart. | ||
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[[Category:Human]] [[Category:Cardiovascular]] [[Category:Blood Vessel]] |
Revision as of 17:05, 7 May 2011
Figs. 18 to 25. The descent of the fourth aortic arch and the definitive aortic arch into the thorax
Shown in relation to the cervical vertebrae and ribs.
Legend
- Asterisk - so-called fifth aortic arch
- 4 - fourth aortic arch
- d. a. - definitive aortic arch
- R. 1 - first rib
- in. art. - innominate artery
- c. r. - cervical rib
- c. c - common carotid
- v. art. - vertebral artery
- a. r. - remnant of segment of dorsal aorta, interrupted between third and fourth aortic arches
- sub. art. - subclavian artery
In figures 20 and 24 the sternal bands are not yet in contact above and the definitive aortic arch has a large radius of curvature.
In figures 21 and 25 the bands have met and the arch has become sharply bent by the swinging dorsally of the heart.
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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) |
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current | 08:26, 1 September 2012 | 1,200 × 795 (179 KB) | Z8600021 (talk | contribs) | ||
17:05, 7 May 2011 | 1,153 × 746 (165 KB) | S8600021 (talk | contribs) | ==Figs. 18 to 25. The descent of the fourth aortic arch and the definitive aortic arch into the thorax== Shown in relation to the cervical vertebrae and ribs. Legend * Asterisk - so-called fifth aortic arch * 4 - fourth aortic arch * d. a. - definitive |
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