[Quantitative indices of myelo- and angioarchitectonics of the posterior funiculus of the spinal cord in cats].

The area size of the transversal section of the clinoid and thin fasciculi has been defined at the level of the cervical enlargement of the spinal cord. The conductive pathways of the posterior funiculus have various number of myelin fibres corresponding to different volume of the sensitive information they carry. At a relatively similar contents of the middle size fibres, there are 3.5% of thin conductors in the clinoid fasciculus, in the thin fasciculus--19%, very large--make 3.5 and 1.7%, respectively. There are two times as many as blood capillaries in the clinoid fasciculus. The length of their parts and the lumen diameter in the thin fasciculus are larger than those in which demonstrates a more variable metrical set of the myelin fibres and certain similarity in the diameters of the blood vessels.