1 The trenchless slip-lining method (in which a new, smaller-diameter is installed inside the existing sewer line) or relining (both of which reduce the overall interior diameter of the sewer line) typically cost $80-$250 or more a foot, or $4,000-$25,000 or more for a typical household sewer. Smaller projects generally cost more per foot. 2  To replace sewer lines less than 50' long, CostHelper readers paid $5,500-$6,800 or $148-$550 per foot for traditional trenching projects, at an average cost of $6,167 or $232 per foot.
The thymus gland is an organ in the upper chest cavity that processes lymphocytes, a type of white blood cell that fights infections in the body. This organ is part of both the lymphatic system, which makes up a major part of the immune system, and the endocrine system, which includes all glands that produce hormones.The thymus is most important in children and young adults, when it programs lymphocytes to attack antigens, like viruses.his organ is part of both the lymphatic system, which makes up a major part of the immune system, and the endocrine system, which includes all glands that produce hormones. The thymus is most important in children and young adults, when it programs lymphocytes to attack antigens, like viruses.
The thymus is a lymphoid gland comprised of two identically sized lobes, located behind the sternum (breastbone) but in front of the heart. It derives its name from a resemblance it bears to the bud of the thyme plant (thymus in Latin).fter this age, the size of the thymus declines as the lymphoid tissue disappears and fat and fibrous tissue appears. T-cells have derived their name from the thymus, because this is where they are produced in the human body. Lymphoid stem cells are delivered to the outer cortex, or layer, of the thymus in blood.