Partial spinal cord ischaemia was induced in dogs, ranging from 1 to 3 years of 
age, by ligature of the abdominal aorta just below the arteria coeliaca. The 
changes of the lumbal sensitive ganglia neurons were studied. In addition to the 
most often occurring changes, e.g., the vacuolization of the mitochondria, the 
disaggregation of ribosomes, the dilatation of the Golgi complex, the 
microtubular formations in the dilated cisterns of the endoplasmic reticulum 
were observed. Modified cisterns of the granulated endoplasmic reticulum (GER) 
occurred focally in relatively well preserved neurons. The individual 
microtubules measured about 24 nm in outer diameter, and their walls were formed 
by some subunits.