The main topic of the elective course is the morphological and functional characteristics of cranial and spinal nerves with a special focus on topographic relationships and the pathways these nerves pass through. On the basis of topographic relationships, the anatomical structures that can lead to their lesions will be shown, as well as the corresponding outbursts from the side of the organs that are innervated by the mentioned nerves. In addition to the morphological descriptions of the anatomical structures, the mechanisms that lead to lesions will be described and clarified (for the nn. olfactorius, anosmia and liquor will be described as symptoms indicating nerve damage in the area of ​​the laminae cribrosae ossis ethmoidalis, for n. II, hemianopsia and other lesions on the visual pathway in terms of involvement of the optic nerve, chiasma opticus, tractus opticus and other variants, etc. to various lesions of the peripheral branches of the plexus for the innervation of the upper and lower extremities).