The structure and function of a slowly adapting touch corpuscle in hairy skin

摘要: 1. Slowly adapting cutaneous mechanoreceptors, in the cat and primates, have been studied by histological neurophysiological methods. 2. Each touch corpuscle is a dome-shaped elevation of epidermis, whose deepest layer contains up to fifty specialized tactile cells. 3. Nerve plates, enclosed cell (Merkel cells), are connected single myelinated axon dense collagenous core corpuscle. 4. The generated > 1000 impulses/sec when excited vertical surface pressure. response was highly localized showed low mechanical threshold, frequency being dependent upon velocity amplitude displacement. There period rapid adaptation before sustained which might continue for 30 min. 5. A quantitative analysis responses excitation displacements differing amplitude, duration included. 6. discharge units evoked stimulus temperature-sensitive, enhanced fall skin temperature.