Cardinal veins: Definition from Answers.com

Cardinal veins

Scheme of arrangement of parietal veins.

Human embryo with heart and anterior body-wall removed to show the sinus venosus and its tributaries.
Gray's	subject #135 520
Carnegie stage	13

During development of the veins, the first indication of a parietal system consists in the appearance of two short transverse veins, the ducts of Cuvier, which open, one on either side, into the sinus venosus. Each of these ducts receives an ascending and descending vein. The ascending veins return the blood from the parietes of the trunk and from the Wolffian bodies, and are called cardinal veins.

There are three cardinal veins: anterior, common, and posterior.^[1]

Additional images

Human embryo of about fourteen days, with yolk-sac.

References

^ "ANAT2341 - Embryology - 2008 - Dr Mark Hill - Lecture 19 - Heart Development". http://embryology.med.unsw.edu.au/Science/ANAT2341lecture19.htm. Retrieved 2008-12-20.

External links

-972685255 at GPnotebook
Embryology at UNSW Notes/heart3
Cardinal+veins at eMedicine Dictionary
Diagram at nature.com

This cardiovascular system article is a stub. You can help Wikipedia by expanding it.

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.

Prenatal development/Mammalian development of circulatory system (GA 5)

Vascular

Blood island

Development of arteries	Dorsal aorta · Aortic arches

Development of veins	Cardinal veins · Ducts of Cuvier

Fetal circulation	umbilical cord: Umbilical vein → Ductus venosus → Inferior vena cava → Heart → Pulmonary artery → Ductus arteriosus → Umbilical artery yolk sac: Vitelline veins · Vitelline arteries

Heart development

Primitive heart tube	Truncus arteriosus · Bulbus cordis · Primitive ventricle · Primitive atrium · Sinus venosus

Septa/ostia	Endocardial cushions/Septum intermedium · Ostium primum · Septum primum (Ostium secundum) · Septum secundum (Foramen ovale) · Aorticopulmonary septum

Other	Atrial canal

heart navs: anat/physio/dev, noncongen/congen/neoplasia, symptoms+signs/eponymous, proc

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