BACKGROUND AND PURPOSE The development of syringomyelia has been associated with changes in CSF flow dynamics in the spinal subarachnoid space. However, differences in CSF flow velocity between patients with posttraumatic syringomyelia and healthy participants remains unclear. The aim of this work was to define differences in CSF flow above and below a syrinx in participants with posttraumatic ...

Figure 2.7: Section through the syrinx of a brown thrasher. (T) thermistors, (MTM) medial tympaniform membranes

Objectives
 To find the most effective surgical procedure for posttraumatic syringomyelia (PTS) in last 1 decade. And to look latest therapeutic strategies that have opportunity be developed future.
 Background
 Syringomyelia related trauma is uncommon case compared other etiology such as Chiari Malformation type 1. The management of PTS remain unclear and debatable. aim this stu...

A recent study (Gaunt et al. 1973) of gas pressure and flow in a vocalizing oscine (Starling, Sturnus vulgaris) produced unexpected results. First, while pressure in the air sacs during a distress call usually rose to 40 times that of ventilatory exhalation, pressure in the trachea, “downstream” from the syrinx, was commonly lower than during exhalation; indeed, it often scarcely exceeded atmos...

Progressive enlargement of posttraumatic syrinx cavities occurs in a small percentage of patients who have suffered a severe spinal cord injury in the past. The exact mechanisms that cause this enlargement and why such enlargement is found in some patients but not in others remains uncertain. However, there are observations that could help explain the insidious progression of this posttraumatic...

In this work, we revisit the path that has been travelled during the last few years towards the modelling of the avian vocal organ, the syrinx, using numerical and theoretical techniques from bifurcation theory as analysing tools and present experimental support for the models. This fruitful perspective allowed the retracing of many acoustic features of syllables to intrinsic properties of the ...