Foreign body aspiration x-ray findings that can be seen with foreign body aspiration include obstructive emphysema, atelectasis, and consolidation. While, x-ray can be used to visualize the location and identity of a foreign body, rigid bronchoscopy under general anesthesia is the gold-standard for diagnosis since the foreign body can be visualized and removed with this intervention. Rigid bronchoscopy is indicated when two of the three following criteria are met: report of foreign body aspiration by the patient or a witness, abnormal lung exam findings, or abnormal chest x-ray findings. Treatment of foreign body aspiration is determined by the severity of obstruction of the
Development of the nervous system in humans also occurs in specific parts of the adult brain. Neurodevelopment in the adult nervous system includes mechanisms such as remyelination, generation of new neurons, glia, axons, myelin or synapses. Neuroregeneration differs between the peripheral nervous system (PNS) and the central nervous system (CNS) by the functional mechanisms and especially, the extent and speed. Development of the nervous system in humans The development of the nervous system in humans involves the studies of neuroscience and developmental biology to describe the cellular and molecular mechanisms by which complex nervous systems emerge during embryonic development and develop throughout life. Some landmarks of embryonic