two types of filaments participate in the formation of the cortical layer : ( 1 ) randomly distributed thin ( actin ) filaments exhibiting a parallel orientation in the anterior ( fc1 ) and a disordered arrangement in the intermediate and posterior cell region ( fc2 ; see also fig . 17b ) , and ( 2 ) thick ( myosin ) filaments in close association with f-actin and mostly restricted to the intermediate and posterior cell region ( fc2 ) .
C0025979
actin
C0007634
cell