part_of part of part of contained in existence overlaps material entity dorsal ventral margin of the whole animal juvenile cell projection adhesive papilla Finger-like processes at the terminal pore of adhesive gland cells around the marginal adhesive zone. They protrude past the epidermis and are longer microvilli, and shorter than cilia. Planarian_Anatomy adhesive papillae https://orcid.org/0000-0003-2569-1939 | https://orcid.org/0000-0002-7535-4413 ISBN:9780070316607 marginal adhesive zone adult hermaphrodite asexual adult viscid gland cell releasing gland cell