Acute otitis media as well as swimmerâs ear both can lead to secondary infections of myringitis. Upper respiratory infections, for example pneumonia or flu, can dispose an individual to ear infections. The symptoms and signs include: 1  Drainage from the ear. 2  Hearing impairment.
Spinal Fusion. Spinal fusion is a surgical procedure used to correct problems with the small bones of the spine (vertebrae). It is essentially a welding process. The basic idea is to fuse together the painful vertebrae so that they heal into a single, solid bone.ll spinal fusions use some type of bone material, called a bone graft, to help promote the fusion. Generally, small pieces of bone are placed into the space between the vertebrae to be fused. A bone graft is primarily used to stimulate bone healing.
introduction of a hollow needle into the subarachnoid space of the spinal canal, usually for the purpose of collecting a sample of cerebrospinal fluid, to introduce radiopaque material for myelography, or the injection of an anesthetic. spinal reflex. any reflex action mediated through a center at the spinal cord.ough reflex the sequence of events initiated by the sensitivity of the lining of the airways and mediated by the medulla as a consequence of impulses transmitted by the vagus nerve, resulting in coughing, i.e., the clearing of the passageways of foreign matter.