Upon actuation, the components typically heat {HEAD ~ a portion} of {TAIL ~ the microfluidic network} and sense a temperature thereof 
Upon actuation , the components typically heat { HEAD ~ a portion } of { TAIL ~ the microfluidic network } and sense a temperature thereof
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH