Sciatic nerve from spinal nerves L4 to S3. It contains fibers from both the anterior and posterior divisions of the lumbosacral plexus. The sciatic nerve is formed from the L4 to S3 segments of the sacral plexus, a collection of nerve fibres that emerge from the sacral part of the spinal cord. The fibres unite to form a single nerve in front of the piriformis muscle. The nerve passes beneath piriformis and through the greater sciatic foramen, exiting the pelvis. From here, it travels down the posterior thigh to the popliteal fossa. The nerve travels in the posterior compartment of the thigh
Meat on the bone value can be hard to judge as the bone part of the product is inedible. Various portions may contain a greater or lesser proportion of bone. The presence of bones may make meat products more bulky, irregular in shape, and difficult to pack. Bones may make preparation and carving more difficult. However, bones can sometimes be used as handles to make the meat easier to eat. Foot-and-mouth disease (FMD) is a contagious disease affecting cloven-hoofed animals. Because FMD rarely infects humans but spreads rapidly among animals, it is a much greater threat to the agriculture industry than to human health.