Fig. 18.2  (a) Structure of actin.  (b) Actin filaments.  (c) Stacking of actin monomers in the F-actin showing polarity of filament.

Fig. 18.4  Networks of actin filaments.

Fig. 18.5  (a) Bundled actin filaments (short crosslinker).  (b) Network of actin filaments (long, flexible crosslinker).

Table 18.1 

Fig. 18.6  Human erythrocyte showing the hubs and linking spectrin network.

Fig. 18.7  The organization of the major erythrocyte cytoskeletal proteins and their interactions with integral membrane proteins.

Fig. 18.9  Cross-linkage of actin filament networks to the plasma membrane in (a) platelets, (b) muscle cells, and (c) epithelial cells.

Fig. 18.10  Intestinal cell showing microvilli and the core actin filaments that help them maintain their shape.