part of part of secretory cell eukaryotic cell neuromast mantle cell ZFA:0009362 Neuromast mantle cell is a non-sensory cell. Neuromast mantle cells surround the neuromast support cells and neuromast hair cells, separating the neuromast from the epidermis, and secrete cupula in which the ciliary bundles of all the hair cells are embedded. sensory hair cell neuromast