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.
Motor neurons' axons are efferent nerve fibers that carry signals from the spinal cord to the effectors to produce effects. Types of motor neurons are alpha motor neurons, beta motor neurons, and gamma motor neurons.There are upper motor neurons and lower motor neurons, with the cell type described above being a lower motor neuron.Upper motor neurons are cortico-spinal interneurons that arise from the motor cortex and descend to the spinal cord where they activate the lower motor neurons through synapses.otor neurons' axons are efferent nerve fibers that carry signals from the spinal cord to the effectors to produce effects. Types of motor neurons are alpha motor neurons, beta motor neurons, and gamma motor neurons.