How to use Ductus in a sentence
To the left of this is the fissure for the ductus venosus, and to the left of this again, the left lobe, in which a broad shallow groove for the oesophagus may usually be seen.
The round ligament and the remains of the ductus venosus are hidden in the depths of their fissures.
In the vast majority of winged insects the terminal part of the genital system (vagina and ductus ejaculatorius) is unpaired and ectodermal.
The Spigelian lobe is represented by a flat surface between the postal fissure and the posterior border, not distinctly marked off from the left lateral by a fissure of the ductus venosus, as this vessel is buried deep in the hepatic substance, but the caudate lobe is distinct and tongue-shaped, its free apex reaching nearly to the border of the right lateral lobe.
Increased risk of necrotizing enterocolitis in premature infants with patent ductus arteriosus treated with indomethacin.Advertisement
The gall-bladder, appropriately designated as "the bitter," was regarded as a part of the liver, and the cystic duct (compared, apparently, to a "penis") to which it is joined, as well as the hepatic duct (pictured as an "outlet") and the ductus choleductus (described as a "yoke"), all had their special designations.
B, anterior portion more highly magnified (from Marshall and Hurst, after Sommer); cs, cirrus sac; d, ductus ejaculatorius; f, female aperture; o, ovary; od, oviduct; p, penis; s, shell-gland; t, anterior testis; u, uterus; va, vp, vasa deferentia; us, vesicula seminalis; y, yolk-gland; yd, its duct.
Patent ductus arteriosus-A congenital defect in which the temporary blood vessel connecting the left pulmonary artery to the aorta in the fetus doesn't close after birth.
In the fetus, blood from the heart to the lungs is delivered into the aorta through a short blood vessel called the ductus arteriosis.
The goal of treatment in children is to reopen the ductus arteriosus and restore blood flow to the descending aorta.Advertisement
Ductus arteriosus refers to an open passageway-or temporary blood vessel (ductus)-that carries blood from the heart via the pulmonary artery to the aorta before birth.
The ductus should close spontaneously in the first few hours after birth.
Patent ductus arteriosus is common in premature babies, but rare in full-term babies.
The right ventricle pumps blood into the pulmonary artery and blood reaches the aorta through a patent ductus arteriosus (see description in the previous section).
In hypoplastic left heart syndrome, the baby seems normal at birth, but as the ductus closes, blood cannot reach the aorta and circulation fails.Advertisement
Patent ductus arteriosus-quick tiring, slow growth, susceptibility to pneumonia, and rapid breathing.
If the ductus is small, there are no symptoms.
When the ductus does not close at birth, it causes a type of congenital heart disease called patent ductus arteriosus.
Patent ductus arteriosus is a condition in which the duct that channels blood between two main arteries does not close after the baby is born.
Various types of congenital heart disease, including ventricular septal defect (VSD), atrial septic defect (ASD), or PDA (patent ductus arteriosus), may be present.Advertisement
Transposition of the great arteries may be treated by the use of medications called prostaglandins which keep the ductus arteriousus open.
Patent ductus arteriosus (PDA) is a heart defect that occurs in infants when the ductus arteriosus (the temporary fetal blood vessel that connects the aorta and the pulmonary artery) does not close at birth.
The ductus arteriosus is a temporary fetal blood vessel that connects the aorta and the pulmonary artery before birth.
The ductus arteriosus should be present and open before birth while the fetus is developing in the uterus.
Since oxygen and nutrients are received from the placenta and the umbilical cord instead of the lungs, the ductus arteriosus acts as a "short cut" that allows blood to bypass the deflated lungs and go straight out to the body.Advertisement
After birth, when the lungs are needed to add oxygen to the blood, the ductus arteriosus normally closes.
The closure of the ductus arteriosus ensures that blood goes to the lungs to pick up oxygen before going out to the body.
Closure of the ductus arteriosus usually occurs at birth as levels of certain chemicals, called prostagladins, change, and the lungs fill with air.
If the ductus arteriosus closes correctly, the blood pumped from the heart goes to the lungs, back into the heart, and then out to the body through the aorta.
In some infants, the ductus arteriosus remains open (or patent), and the resulting heart defect is known as patent ductus arteriosus.Advertisement
In either case, there are specific gene changes or mutations which lead to a defect in the elastic tissue forming the walls of the ductus arteriosus.
The combined factors lead to isolated defects in the elastic tissue forming the walls of the ductus arteriosus.
Device closure of PDA is a medical procedure in which a device such as a coil, very small rings of wire, or an occluder, a tiny wire mesh patch, is placed over the PDA causing the blood to clot and thus closing the open ductus.
Individuals can survive with a small opening remaining in the ductus arteriosus.
Patent ductus arteriosus (PDA) is a heart problem fairly common in premature babies.Advertisement
A large artery in the heart called the ductus arteriosus may not develop properly.