Non-Contact Ultrasound Treatment for Wounds. Ultrasound is defined as a mechanical vibration above the upper threshold of human hearing. Ultrasound (US) in the kilohertz range (1â3 MHz) has been used for the treatment of musculoskeletal disorders, primarily by physical therapists. A non-contact low-intensity US device has been developed that does not require use of a coupling gel or other direct contact.
Sensory nerves. Sensory nerves deliver information to your spinal cord from muscles and joints about your body position. They also transmit sensations such as touch, pressure, pain and temperature, which are experienced on the surface of your skin. This information enters your spinal cord via your posterior grey horn.
Sensory Neurons: Sensory neurons carry signals from the outer part of the body into the central nervous system. Motor Neurons: Motor neurons carry signals from the central nervous system to the outer parts of the body. Afferent/Efferent Pathways. Sensory Neurons: Sensory neurons follow the afferent pathway.