The sciatic nerve is a large nerve that starts in the lower back. 1  It forms near the spine and is made up from branches of the roots of the lumbar spinal nerves. 2  It travels through the pelvis and then deep into each buttock. 3  It then travels down each leg. It is the longest and widest single nerve in the body.
A triglyceride is an ester derived from glycerol and three to four fatty acids. Triglycerides are the main constituents of body fat in humans and other animals, as well as vegetable fat. They are also present in the blood to enable the bidirectional transference of adipose fat and blood glucose from the liver, and are a major component of human skin oils. There are many different types of triglyceride, with the main division between saturated and unsaturated types. Saturated fats are saturated
By Yolanda Smith, BPharm. Triglycerides are the most common type of fat digested in the body and can be either consumed in the diet or produced in the body. They normally circulate in the bloodstream to supply energy to cells and are stored in body fat as an emergency store of energy.riglycerides are utilized in the body by offering a source of energy to cells that require it. They are a normal component of the blood and are naturally stored in fat deposits. However, when present in excess triglycerides can cause problems in the body and lead to serious diseases.