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).
The concentration of goblet cells varies throughout the body; their numbers are small relative to other cell types, however in tissues such as the colon they are much more abundant. Shape. The function of goblet cells is to secrete fundamental parts of mucus called mucins. These mucins are glycosylated proteins that are suspended in electrolytes. The mucus secreted by goblet cells are very important; mucus protects the body from chemical damage, and also helps to eliminate particles and microorganisms from the respiratory tree. Secretion of mucus from goblet cells are induced by irritating stimuli rather than by hormones.