And you would be right in just about every instance. But for veterans with service-connected disability ratings, the math doesnât always work out quite so easily. In fact, 30 + 20 might only equal 44, which rounds down to 40. Or it might equal 48.4, which rounds up to 50.
Exteroceptors are the afferent nerve endings that sense stimuli originating from outside of the body, such as pain, touch, vibration, temperature, and sound. One type of exteroceptors are known as mechanoreceptors, which are receptors that respond to external mechanical stimuli such as touch, pressure, and vibration.
Nerve Tissue. Although the nervous system is very complex, there are only two main types of cells in nerve tissue. The actual nerve cell is the neuron. It is the conducting cell that transmits impulses and the structural unit of the nervous system. The other type of cell is neuroglia, or glial, cell.