Immune system. Immune system. (Science: immunology) The body system, made up of many organs and cells, that defends the body against infection, disease and foreign substances. The immune system is often stimulated in specific ways to fight cancer cells.
An umbilical cord clamp may be used to hold the cord in place when a cut is made to separate a newborn baby from the placenta.his procedure usually first involves clamping the cord. The umbilical cord clamp thus refers to the devices used to hold the cord in place when the cut is made, and the clamp may stay on for several days while the remaining cord attached to the baby dries.
During prenatal development, the umbilical cord is physiologically and genetically part of the fetus and, (in humans), normally contains two arteries (the umbilical arteries) and one vein (the umbilical vein), buried within Wharton's jelly.he cord can be clamped at different times; however delaying the clamping of the umbilical cord until one minute after birth improves outcomes as long as there is the ability to treat jaundice if it occurs. Clamping is followed by cutting of the cord, which is painless due to the absence of nerves.