Trachea to air sacs. Many insects, such as grasshoppers and bees, which actively pump the air sacs in their abdomen, are able to control the flow of air through their body. In some aquatic insects, the tracheae exchange gas through the body wall directly, in the form of a gill, or function essentially as normal, via a plastron. Note that despite being internal, the tracheae of arthropods are lined with cuticular tissue and are shed during moulting (ecdysis). In 2008, a Colombian woman, Claudia Castillo (30), received a trachea transplant using her own stem cells. Between 2011 and 2014 Paolo Macchiarini
Body in the cylinder that it had been part of a ventilation shaft. On 13 July 1945 three small boys were playing with the cylinder. They were rolling it through the streets when one tried to see what was inside. At first they saw what appeared to be a shoe, however, on closer inspection it appeared to be part of an human skeleton. The police were called to the scene and they used an Oxy acetylene burner to cut the cylinder open. The contents were revealed to be a complete human skeleton accompanied by a number of items. The police removed the remains and