Development of the aorta

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Information about Development of the aorta

Published on July 7, 2016

Author: AntonniKendallPrades

Source: slideshare.net

1. Development of the aorta From 4 mm to term

2. Week 4 By weeks 3 and 4 the primary great vessels of the heart begin to form. In C11 the first arch vessel is formed, in the succeeding stages more of the arches are formed ST 11-First 2 arches formed St 12-First arch atrophies, 3rd arch formed ST 13-Fourth arch formed, 2nd arch atrophies ST 14-Two arches atrophied

3. Week 5-7 In further later stages the pulmonary artery anlagen form and the reduction of the right side of the dorsal aorta begins to atrophy In St 15 the right and left compartments of the dorsal aorta disappear At st 16 the position of the subclavian artery moves upwards and the intersegmental artery is formed In st 17, the right part of dora dorsal artery disappears In st 18 it has been obliterated

4. Week 8 In the last week of the embryonic period the aorta itself would remain in adult form, but in birth has changed its appearance The right dorsal aorta is gone, and the lft on one still appears

5. Fetus Into internal in the late foetal period the lungs cir cul ate the heart is evident In adults all of the embryonic portions have been disappeared except the remains of ductus art.

6. Aorticopulmonary septation In the start of 6th week the aortic pulmonary channels are established It includes semilunar valves

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