ductus arteriosus

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ductus

 [duk´tus] (pl. duc´tus) (L.)
ductus arterio´sus a fetal blood vessel that joins the aorta and pulmonary artery.
ductus de´ferens the excretory duct of the testis, which joins the excretory duct of the seminal vesicle to form the ejaculatory duct; called also vas deferens.
patent ductus arteriosus see patent ductus arteriosus.
ductus veno´sus a major blood channel that develops through the embryonic liver from the left umbilical vein to the inferior vena cava.

duc·tus ar·te·ri·o·sus

a fetal vessel connecting the left pulmonary artery with the descending aorta; in the first 2 months after birth, it normally changes into a fibrous cord, the ligamentum arteriosum; persistent postnatal patentcy is a correctable cardiovascular handicap.

ductus arteriosus

(dŭk′təs är-tîr′ē-ō′səs)
n.
A fetal blood vessel that connects the left pulmonary artery with the descending aorta and that normally closes at birth.

ductus arteriosus

a vascular channel in the fetus that joins the pulmonary artery directly to the descending aorta. It normally closes after birth.

duc·tus ar·te·ri·o·sus

(dŭk'tŭs ahr-tē-rē-ō'sŭs)
A fetal vessel connecting the left pulmonary artery with the descending aorta; in the first 2 months after birth, it normally changes into a fibrous cord called the ligamentum arteriosum; occasional postnatal failure to close causes a surgically correctable cardiovascular handicap.
Synonym(s): arterial canal, arterial duct, Botallo duct.

ductus arteriosus

A short shunting artery lying between the main artery to the lungs (pulmonary artery) and the main artery to the body (aorta). During fetal life blood need not pass through the lungs and this vessel acts as a bypass. It normally closes soon after birth. If it fails to do so (patent ductus arteriosus) the blood is insufficiently oxygenated and there may be interference with growth and development and additional strain on the heart.
Ductus arteriosusclick for a larger image
Fig. 138 Ductus arteriosus . Location in mammals.

ductus arteriosus

a blood vessel found in foetal mammals which connects the pulmonary artery to the AORTA and thus creates a bypass to the lungs. See Fig. 138 . The vessel closes soon after birth so that all blood is now sent through the lungs for oxygenation. Occasionally the vessel does not close completely, which may cause a condition called BLUE BABY.

Ductus arteriosus

The temporary channel or blood vessel between the aorta and pulmonary artery in the fetus.

Botallo,

Leonardo, Italian physician in Paris, 1530-1600.
Botallo duct - a fetal vessel connecting the left pulmonary artery with the descending aorta. Synonym(s): ductus arteriosus
Botallo foramen - the orifice of communication between the two atria of the fetal heart.
Botallo ligament - the remains of the ductus arteriosus. Synonym(s): ligamentum arteriosum

ductus

pl. ductus [L.] duct.

ductus arteriosus
a fetal blood vessel that joins the aorta and pulmonary artery. Abnormal persistence of an open lumen after birth results in a patent ductus arteriosus. Called also persistent or patent ductus arteriosus.
ductus choledochus
ductus deferens
the excretory duct of the testis, which in horses and ruminants joins the excretory duct of the seminal vesicle to form the ejaculatory duct; called also vas deferens.
ductus epididymis
the duct which, in combination with connective tissue and muscle, forms the head, body and tail of the epididymis and continues as the ductus deferens.
ductus epoophori longitudinales
ductus reuniens
the joining channel between the cochlea and sacculus of the membranous labyrinth of the inner ear.
ductus venosus
a major blood channel that develops through the embryonic liver from the left umbilical vein to the caudal vena cava and closes within a few days after birth. If it remains patent, a congenital portacaval anastamosis is created.