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.
Spinal cord section with its ventral and dorsal root fibers and ganglion. Information from the skin, skeletal muscle and joints is relayed to the spinal cord by sensory cells located in the dorsal root ganglia. The dorsal root fibers are the axons originated from the primary sensory dorsal root ganglion cells.