“…Formation of long and thin cellular protrusions which connect cells to substrata and to other cells is a wide‐spread phenomenon, that is observed in various embryonic cells (Galkina et al , 2006a), blood cells (Shao et al , 1998; Schmidtke & Diamond, 2000; Galkina et al , 2001, 2005, 2006b; Raghunathan et al , 2001; Marcus & Hochmuth, 2002; Park et al , 2002; Gupta & DeFranco, 2003; Onfelt et al , 2004; Ramachandran et al , 2004; Watkins & Salter, 2005), nerve cells (Rustom et al , 2004) and astrocytes (Gimsa et al , 2007). Because of the resolution limitations of optic microscopy, these structures have not been studied extensively.…”