MEDICAL ENCYCLOPEDIA. 1  Back pain - returning to work. 2  Back pain and sports. 3  Compression fractures of the back. 4  Lifting and bending the right way. 5  Lumbosacral spine x-ray. 6  Returning to sports after a back injury. 7  Spinal fusion. 8  Spinal fusion - slideshow. 9  Vertebroplasty - slideshow.
The mucociliary escalator is one of the major defense mechanisms, which protect the lung, and if the mucociliary escalator fails, it increases the risk that the normal and potentially pathogenic, inhabitants of the nose, throat and the back of the mouth, will descend into the lung, resulting in a potentially life-threatening pneumonia ( Anatomy and Physiology, 2013, p. 139).
Scattered throughout the cilia are goblet â¦ cells that secrete mucus which helps protect the lining of the bronchus and trap microorganisms. The purpose of mucus is to lubricate and protect the organs that it lines.he cilia in the nose play a major role in the sense of smell. The  cilia transmit the smell to the olfactory nerve. They also catch  toxins like chemicals, viruses, and bac â¦ teria and cause them to  become trapped in mucus and swallowed instead of being inhaled into  the lungs.