Intersegmental artery
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The intersegmental arteries are a set of 30 arteries arising from the embryonic dorsal aorta[1], with each artery providing blood supply to one somite and its derivatives.
Cervical Intersegmental Arteries
The cervical intersegmental arteries merge into the vertebral artery[1] with the exception of the 7th (or possibly the 6th) cervical intersegmental artery, which becomes the subclavian artery[2]. The vertebral artery then drains into the subclavian artery after the disappearance of the dorsal aortae in the cervical region.
Thoracic Intersegmental Arteries
The thoracic intersegmental arteries all develop into the intercostal arteries[1].
Lumbar Intersegmental Arteries
The lumbar intersegmental arteries develop into the lumbar arteries, with the exception of the 5th (last) lumbar intersegmental artery, which becomes the common iliac arteries[1].
Sacral Intersegmental Arteries
These arteries merge into the lateral sacral artery[1].
References
- ^ a b c d e Moore, Keith L.; Persaud, T. V. N.; Torchia, Mark G. (2015-04-06). The Developing Human: Clinically Oriented Embryology. Elsevier Health Sciences. p. 288. ISBN 9780323313483.
- ^ "Aortic arches". www.embryology.ch. Retrieved 2016-08-10.