the sequence of changes occurring over the 90 minutes subsequent to the addition of antiserum were visualized well with the scanning electron microscope and included the early appearance of elongated , rigid filopodia , the internalization of m. pneumoniae by ruffled membrane extensions , and finally the appearance of highly spread cells surrounded by large areas of cover slip cleared of m. pneumoniae .
C0600315
filopodia
C0007634
the