umbilical

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umbilical

 [um-bil´ĭ-kal]
pertaining to the umbilicus.
umbilical cord the structure that connects the fetus and placenta; it is the lifeline of the fetus in the uterus throughout pregnancy. About 2 weeks after conception, the umbilical cord and the placenta are sufficiently developed to begin their functions. Through two arteries and a vein in the cord, nourishment and oxygen pass from the blood vessels in the placenta to the fetus, and waste products pass from the fetus to the placenta. Soon after birth, the umbilical cord is clamped or tied and then cut. The part that is attached to the placenta, still in the uterus, is expelled with the placenta. The stump that remains attached to the baby's abdomen is about 2 inches (5 cm) long. After a few days it falls off naturally.
Clamping the umbilical cord.
Umbilical cord with umbilical vein and umbilical arteries. From McKinney, 2000.
umbilical hernia protrusion of abdominal contents through the abdominal wall at the umbilicus, the defect in the abdominal wall and protruding intestine being covered with skin and subcutaneous tissue. Called also exomphalos and exumbilication.



During the growth of the fetus, the intestines grow more rapidly than the abdominal cavity. For a period, a portion of the intestines of the unborn child usually lies outside the abdomen in a sac within the umbilical cord. Normally, the intestines return to the abdomen, and the defect is closed by the time of birth. Occasionally the abdominal wall does not close solidly, and umbilical hernia results. This defect is more likely to be seen in premature infants and in girls rather than boys. It usually closes by itself. Coughing, crying, and straining temporarily cause the sac to enlarge, but the hernia never bursts and digestion is not affected. If the defect in the abdominal wall has not repaired itself by the time the child is 2 years old, surgery to correct the condition (herniorrhaphy) can then be performed.

Umbilical hernia should be distinguished from omphalocele, in which the intestines protrude directly into the umbilical cord and are covered only by a thin membrane. Omphalocele is a surgical emergency that must be treated immediately after birth.

um·bil·i·cal

(ŭm-bil'i-kăl),
Relating to the umbilicus.
Synonym(s): omphalic

umbilical

/um·bil·i·cal/ (um-bil´ĭ-k'l) pertaining to the umbilicus.

umbilical

(ŭm-bĭl′ĭ-kəl)
adj.
1. Of, relating to, or resembling a navel or an umbilical cord.
2. Located near the central area of the abdomen.
n. Aerospace
An umbilical cord.

um·bil′i·cal·ly adv.

umbilical

[umbil′ikəl]
Etymology: L, umbilicus, navel
1 See umbilicus.
2 pertaining to the umbilical cord.

umbilical

adjective Referring to the umbilicus.

Pronunciation
Medspeak-UK: pronounced, umm bih LIE cull
Medspeak-US: pronounced, I

um·bil·i·cal

(ŭm-bil'i-kăl)
Relating to the umbilicus.
Synonym(s): omphalic.

Umbilical

Referring to the opening in the abdominal wall where the blood vessels from the placenta enter.

umbilical

pertaining to the umbilicus.

umbilical abscess
see urachal abscess.
umbilical clamp
used in calves and foals for the closed method of herniorrhaphy. Consists of two lightweight bars that can be screwed together very tightly. The herniated gut is evacuated from the hernia and the clamp applied to as much of the hernial pouch as can be included. The tissue beyond the clamp sloughs and the clamp can be removed.
umbilical cord
see umbilical cord.
umbilical cord infection
umbilical diverticulum
an evagination of the bowel wall at the vestigial point of attachment of the yolk sac. Called also Meckel's diverticulum.
umbilical gas gangrene
umbilicus infected with Clostridium septicum, C. oedematiens.
umbilical hemorrhage
a specific syndrome in newborn piglets. Bleeding from fleshy navel, also from ear notching, causes fatal anemia. The cause is unknown.
umbilical hernia
protrusion of abdominal contents through the abdominal wall at the umbilicus, the defect in the abdominal wall and protruding intestine being covered with skin and subcutaneous tissue. Occurs sporadically in all species and inherited in cattle and some breeds of dogs. Soft swelling at umbilicus is reducible into the abdomen through a palpable ring. May accompany omphalitis.
Enlarge picture
Umbilical hernia in a foal. By permission from Knottenbelt DC, Pascoe RR, Diseases and Disorders of the Horse, Saunders, 2003
umbilical hernia strangulation
the intestinal loop in the hernia becomes incarcerated with its lumen occluded and its blood supply compromised.
umbilical inflammation
umbilical occlusion
as when the umbilical cord is trapped between the fetus and the wall of the birth canal, causing loss of the fetal blood supply.
umbilical sinus
created by persistence of only the distal end of the intraembryonic allantoic stalk at the umbilicus.
umbilical tape
cotton tape, about 0.5 inch, with two selvedge edges. Used to tie off an umbilicus in calves and foals.
umbilical vein
one of a pair of veins which return oxygenated blood from the placenta through the umbilical cord to the ductus venosus and thence to the heart.
umbilical vein infection
umbilical vein abscess
residual after subsidence of acute omphalophlebitis.
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e box-shaped building houses a gigantic vertical helix assembly machine (VHAM) and extrusion line, enabling the production of extremely long-length umbilicals, of considerable diameter, while incorporating large numbers of components to meet the industry's worldwide requirements for the foreseeable future.
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