isthmus aortae - meaning and definition. What is isthmus aortae
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What (who) is isthmus aortae - definition

Dorsal aortæ; Dorsal aortae

Fauces (throat)         
PART OF THE OROPHARYNX DIRECTLY BEHIND THE MOUTH CAVITY, BOUNDED SUPERIORLY BY THE SOFT PALATE, LATERALLY BY THE PALATOGLOSSAL ARCHES, AND INFERIORLY BY THE TONGUE
Fauces (anatomy); Pillars of the fauces; Faucial pillars; Palatine arches; Isthmus faucium; Oropharyngeal isthmus; Faucitis; Faucial isthmus; Pillar of fauces; Isthmus of fauces; Pillars of fauces; Pillar of the fauces; Palatine arch; Isthmus of the fauces
The fauces, isthmus of fauces, or the oropharyngeal isthmus, is the opening at the back of the mouth into the throat. It is a narrow passage between the velum and the base of the tongue.
Isthmus of Chignecto         
  •  Map of Chignecto (1755)
  • American ranging]]
  • Marquis de Boishébert - [[Charles Deschamps de Boishébert et de Raffetot]] (1753)
  • British Gravestones from the Mi'kmaw Raid on Fort Monckton (1756) - oldest  known military gravestones in the [[Maritimes]]
LANDFORM
Chignecto Isthmus
The Isthmus of Chignecto is an isthmus bordering the Maritime provinces of New Brunswick and Nova Scotia that connects the Nova Scotia peninsula with North America.
Uterine isthmus         
INFERIOR-POSTERIOR PART OF UTERUS
Isthmus uteri
The uterine isthmus is the inferior-posterior part of uterus, on its cervical end — here the uterine muscle (myometrium) is narrower and thinner. It connects the body and cervix.

Wikipedia

Dorsal aorta

The dorsal aortae are paired (left and right) embryological vessels which progress to form the descending aorta. The paired dorsal aortae arise from aortic arches that in turn arise from the aortic sac.

The primary dorsal aorta is located deep to the lateral plate of mesoderm and move from lateral to medial position with development and eventually will fuse with the other dorsal aorta to form the descending aorta.

Each primitive aorta anteriorly receives the vitelline vein from the yolk-sac, and is prolonged backward on the lateral aspect of the notochord under the name of the dorsal aorta.

The dorsal aortae give branches to the yolk-sac, and are continued backward through the body-stalk as the umbilical arteries to the villi of the chorion.