NORMAL REFLEX ARC. BRAIN AND SPINAL CORD CONDUCTION, CLINICAL SIGNIFICANCE. SENSORY PATHWAYS. PATHWAYS, CLINICAL SIGNIFICANCE.

Аннотация:

Conductive tracts, conducting tracts of the head and spinal cord - nerve fibers in the central nervous system; combined into a single morphological and functional system according to its structure and function. Conductive pathways convey external and internal environmental influences to brain cells (sensory pathways), and the resulting response to working organs (motor pathways). Most of the conduction pathways (long pathways) run through the spinal cord to the cerebral cortex and, conversely, from the cortex to the spinal cord and from there to the limbs. Short paths are confined to the area of the brain. Depending on their function, neurons are divided into three main groups: a) sensory receptors (afferent); b) executive (efferent); c) connection is made between intermediate neurons. Their cells are located in the gray matter of the cortex of the spinal cord and brain, and their nerve fibers are located in their white matter.