Cerivical cancer cell detail, coloured scanning electron micrograph (SEM). The cervix, or neck, is the lower part of the womb. Cervical cancer is more common in younger women. One of the main causes of cervical cancer is a persistent infection of certain types of human papillomavirus (HPV). The HeLa cell is an immortal cervical cell line which means that they are able to divide perpetually. HeLa cells grow easily and rapidly in culture which, along with their immortality, makes them ideal for many areas of biological, medical and molecular research. This cell has long extending filopodia-like structures. Filopodia contain actin filaments and can have roles in numerous processes including cell-cell interactions, cell migration or as a sensory guide towards a chemoattractant (a chemical agent that induces a cell to migrate towards it). Magnification: x6000 when printed at 10cm wide.