ductus venosus

Information about ductus venosus

Vein:
Fetal circulation. The ductus venosus (red) connects the umbilical vein to the inferior vena cava.
The liver and the veins in connection with it, of a human embryo, twenty-four or twenty-five days old, as seen from the ventral surface.
subject #139 540
Sourceumbilical vein
Drains toinferior vena cava
Arteryductus arteriosus
Dorlands/Elsevierd_29/12315175
In the fetus, ductus venosus shunts a significant minority of the blood flow of the umbilical vein directly to the inferior vena cava. Thus, it allows oxygenated blood from the placenta to bypass the liver. In conjunction with the other fetal shunts, the foramen ovale and ductus arteriosus, it plays a critical role in preferentially shunting oxygenated blood to the fetal brain.

Ductus venosus is open at the time of the birth and is the reason why umbilical vein catheterization works. Ductus venosus naturally closes during the first week of life in most full-term neonates; however, it may take much longer to close in pre-term neonates. Functional closure occurs within minutes of birth. Structural closure in term babies occurs within 3 to 7 days.

After it closes, the remnant is known as ligamentum venosum.

See also

External links

 •  • [ e]
Prenatal development/Mammalian development of circulatory system
Heart developmentatria (Primitive atrium, Atrial canal) - ventricles (Primitive ventricle, Bulbus cordis) - ostia (Ostium primum, Foramen ovale) - septa (Septum primum, Septum secundum, Septum intermedium, Endocardial cushions) - Sinus venosus - Truncus arteriosus
Vascular arteries: Dorsal aorta - Aortic arches - Vitelline arteries - Ductus arteriosus - Umbilical artery
veins: Cardinal veins - Ducts of Cuvier - Vitelline veins - Ductus venosus - Umbilical vein

Veins [ edit]
superficial - deep - venae comitantes - venous sinuses - pulmonary | (Gray's s164-Gray's s165) heart: coronary sinus - great cardiac - left marginal - small cardiac - right marginal - middle cardiac - posterior of the left ventricle - oblique of the left atrium - anterior cardiac | (Gray's s166) exterior of the head and face: frontal - supraorbital - angular - anterior facial - common facial - deep facial - superficial temporal - posterior facial - transverse facial - pterygoid - internal maxillary - posterior auricular - occipital | (Gray's s167) veins of the neck: external jugular - sinus - posterior external jugular - anterior jugular - internal jugular - inferior petrosal sinus - lingual - ranine - pharyngeal - superior thyroid - middle thyroid - vertebral - deep cervical | (Gray's s168) diploic/veins of the brain: cerebral - superior cerebral - middle cerebral - inferior cerebral - basal - internal cerebral - great cerebral - cerebellar | (Gray's s169-Gray's s170) sinuses of the dura mater: superior sagittal - inferior sagittal - straight - transverse - sigmoid - petrosquamous - occipital - confluence - cavernous | (Gray's s171) ophthalmic: superior ophthalmic - nasofrontal - inferior ophthalmic - intercavernous sinuses - superior petrosal sinus - basilar - emissary | (Gray's s171) upper extremity: superficial (cephalic - median cubital - accessory cephalic - basilic - median antebrachial) - deep (radial - ulnar - brachial - axillary) | (Gray's s172) thorax: subclavian - brachiocephalic - internal thoracic - superior phrenic - inferior thyroid - intercostal (supreme - superior - posterior) - superior vena cava - azygos - hemiazygos - accessory hemiazygos - bronchial | (Gray's s172) vertebral column: external vertebral venous plexuses - internal vertebral venous plexuses - basivertebral - intervertebral - of the medulla spinalis | (Gray's s172) lower extremity: common digital - great saphenous - thoracoepigastric - small saphenous - plantar digital - posterior tibial - peroneal - anterior tibial - popliteal - femoral - profunda femoris | (Gray's s173) abdomen and pelvis: external iliac - inferior epigastric - internal iliac - superior gluteal - inferior gluteal - internal pudendal - hemorrhoidal - pudendal - dorsal of the penis - common iliac - inferior vena cava - spermatic - ovarian - renal - suprarenal - inferior phrenic - hepatic | (Gray's s173) portal system: sinusoids - portal - splenic - short gastric - left gastroepiploic - pancreatic - inferior mesenteric - superior rectal - superior mesenteric - right gastroepiploic - pancreaticoduodenal | (Gray's s174) fetal: ductus venosus - umbilical | (Gray's s139)
The umbilical vein is a blood vessel present during fetal development that carries oxygenated blood from the placenta to the growing fetus.

Circulation

Attached to the uterine lining, the placenta is the site of gas exchange between mother and fetus.
..... Click the link for more information.
The inferior vena cava (or IVC) is the large vein that carries de-oxygenated blood from the lower half of the body into the heart.

It is posterior to the abdominal cavity and runs along side of the vertebral column on its right side (i.e. it is a retroperitoneal structure).
..... Click the link for more information.
The umbilical vein is a blood vessel present during fetal development that carries oxygenated blood from the placenta to the growing fetus.

Circulation

Attached to the uterine lining, the placenta is the site of gas exchange between mother and fetus.
..... Click the link for more information.
The inferior vena cava (or IVC) is the large vein that carries de-oxygenated blood from the lower half of the body into the heart.

It is posterior to the abdominal cavity and runs along side of the vertebral column on its right side (i.e. it is a retroperitoneal structure).
..... Click the link for more information.
In the developing fetus, the ductus arteriosus (DA) is a shunt connecting the pulmonary artery to the aortic arch that allows most of the blood from the right ventricle to bypass the fetus' fluid-filled lungs.
..... Click the link for more information.
Elsevier, the world's largest publisher of medical and scientific literature, forms part of the Reed Elsevier group. Based in Amsterdam, the company has substantial operations in the UK, USA and elsewhere.
..... Click the link for more information.
fetus (or foetus, or fœtus) is a developing mammal or other viviparous vertebrate, after the embryonic stage and before birth. The plural is fetuses (foetuses, fœtuses) or, very rarely, foeti.
..... Click the link for more information.
The umbilical vein is a blood vessel present during fetal development that carries oxygenated blood from the placenta to the growing fetus.

Circulation

Attached to the uterine lining, the placenta is the site of gas exchange between mother and fetus.
..... Click the link for more information.
The inferior vena cava (or IVC) is the large vein that carries de-oxygenated blood from the lower half of the body into the heart.

It is posterior to the abdominal cavity and runs along side of the vertebral column on its right side (i.e. it is a retroperitoneal structure).
..... Click the link for more information.
The placenta is an ephemeral (temporary) organ present in placental vertebrates, such as some mammals and sharks during gestation (pregnancy).

The placenta develops from the same sperm and egg cells that form the fetus, and functions as a fetomaternal organ with two
..... Click the link for more information.
liver is an organ present in vertebrates and some other animals. It plays a major role in metabolism and has a number of functions in the body, including glycogen storage, decomposition of red blood cells, plasma protein synthesis, and detoxification.
..... Click the link for more information.
There are multiple structures in the human body with the name foramen ovale (plural: foramina ovalia; Latin for "oval hole"):
  • In the fetal heart, the foramen ovale (heart) is a shunt from the right to left atrium.

..... Click the link for more information.
In the developing fetus, the ductus arteriosus (DA) is a shunt connecting the pulmonary artery to the aortic arch that allows most of the blood from the right ventricle to bypass the fetus' fluid-filled lungs.
..... Click the link for more information.
The ligamentum venosum is the fibrous remnant of the ductus venosus of the fetal circulation. Usually, it is attached to the left branch of the portal vein within the porta hepatis of the liver. It may be continuous with the round ligament of liver (ligamentum teres).
..... Click the link for more information.
The ligamentum venosum is the fibrous remnant of the ductus venosus of the fetal circulation. Usually, it is attached to the left branch of the portal vein within the porta hepatis of the liver. It may be continuous with the round ligament of liver (ligamentum teres).
..... Click the link for more information.
GPnotebook is a British medical database for general practitioners (GPs).[1] It is an online encyclopaedia of medicine that provides an immediate reference resource for clinicians worldwide. The database consists of over 30,000 pages of information.
..... Click the link for more information.
Prenatal development is the process in which an embryo or fetus (or foetus) gestates during pregnancy, from fertilization until birth. Often, the terms fetal development, foetal development, or embryology are used in a similar sense.
..... Click the link for more information.
Mammalian embryogenesis is the process of cell division and cellular differentiation during early prenatal development which leads to the development of a mammalian embryo.
..... Click the link for more information.
Embryology is the study of the development of an embryo. An embryo is defined as any vertebrate in a stage before birth or hatching. Embryology refers to the development of the egg cell (zygote) after fertilization and the differentiation of cells into tissues and organs.
..... Click the link for more information.
Circulatory System is a psychedelic rock musical ensemble formed by musician/painter Will Cullen Hart, and featuring Hannah Jones, Derek Almstead, Peter Erchick, John Fernandes, and Heather McIntosh.
..... Click the link for more information.
The heart is the first functional organ in a vertebrate embryo. There are 5 stages to heart development.

Specification of cardiac precursor cells

The lateral plate mesoderm delaminates to form two layers: the dorsal somatic (parietal) mesoderm and the ventral splanchnic
..... Click the link for more information.
The introduction to this article provides insufficient context for those unfamiliar with the subject matter.
Please help [ improve the introduction] to meet Wikipedia's layout standards.

..... Click the link for more information.
atrial canal, and indicates the site of the future atrioventricular valves.

External links

  • Description at ed.ac.uk
This article was originally based on an entry from a public domain edition of Gray's Anatomy.
..... Click the link for more information.
The primitive ventricle of the developing heart gives rise to the trabeculated parts of the left and right ventricles. In contrast, the smooth parts of the left and right ventricles originate from the embryological bulbus cordis.
..... Click the link for more information.
When the developing heart assumes its S-shaped form, the bulbus cordis lies ventral to the primitive ventricle. Together, the bulbus cordis and the primitive ventricle give rise to the ventricle of the formed heart.
..... Click the link for more information.
ostium primum (interatrial foramen primum), below the free margin of the septum.

Closing of ostium primum

This opening is closed by the union of the septum primum with the septum intermedium, and the communication between the atria is reëstablished through an
..... Click the link for more information.
In the fetal heart, the foramen ovale (or ostium secundum of Born) allows blood to enter the left atrium from the right atrium. It is one of two shunts, the other being the ductus arteriosus, that allows blood entering the right atrium to bypass the pulmonary circulation.
..... Click the link for more information.
The introduction to this article provides insufficient context for those unfamiliar with the subject matter.
Please help [ improve the introduction] to meet Wikipedia's layout standards.

..... Click the link for more information.
The septum secundum, semilunar in shape, grows downward from the upper wall of the atrium immediately to the right of the primary septum and foramen ovale.

Shortly after birth it fuses with the primary septum, and by this means the foramen ovale is closed, but sometimes the
..... Click the link for more information.
septum intermedium which divides the canal into two channels, the future right and left atrioventricular orifices.

External links

  • Overview at edu.mt
This article was originally based on an entry from a public domain edition of Gray's Anatomy.
..... Click the link for more information.

This article is copied from an article on Wikipedia.org - the free encyclopedia created and edited by online user community. The text was not checked or edited by anyone on our staff. Although the vast majority of the wikipedia encyclopedia articles provide accurate and timely information please do not assume the accuracy of any particular article. This article is distributed under the terms of GNU Free Documentation License.