electron microscopy and indirect immunofluorescence were employed to correlate the distribution patterns of major contractile proteins ( actin and myosin ) with 1 ) the organizational state of microfilaments , 2 ) the apical cell surface topography , 3 ) the shape of the neuroepithelial cells , and 4 ) the degree of bending of the neuroepithelium during neurulation in chick embryos at hamburger and hamilton stages 5-10 of development .
C0001271
actin
C0025979
microfilaments