At any moment, each of these specialized brain neurons might be receiving multiple messages from multiple sources, but is only selectively responding to certain information about the timing or frequency of the impulses it is receiving. Related Stories.
Methods for measuring sympathetic nervous system activity. Heart rate variability (HRV), the beat-to-beat variation in heart rate, is an indirect method of measuring autonomic nervous system activity, with contributions from both the sympathetic and parasympathetic nervous systems.ine electrodes are used to record 'bursts' of activity from multiple or single afferent and efferent nerve axons in the skin and muscle. The common peroneal nerve is typically chosen for this method (because it is easily accessible) and measures the efferent postganglionic muscle sympathetic nerve activity (MSNA).
  A different set of genes are active in muscle cells which allow it to perform particular functions. A different set of genes are active in nerve cells which allow the nerve cell to perform a different set of specialized functions.uscle cells differ from nerve cells mainly because? already exists. already exists as an alternate of this question. exists and is an alternate of. When you're not busy performing, what do you like to do for fun? Mature human nerve cells and muscle cells? What type of nerve cell stimulates muscle cells to contract? How are bone cells and nerve ...