sustentacular

1998 [Kluwer Academic], Julian Lombardi, Comparative Vertebrate Reproduction, 1998, Softcover reprint, Springer, page 122, During spermiogenesis, the highly specialized sustentacular cells provide support and protection during the transformative process.

Normal paraganglionic tissue contains two types of cell: chief or type I cells, which are neuroendocrine cells, and sustentacular or type II cells, which are not neuroendocrine, but contain S-100 protein.

2001, Leslie Michaels, Henrik B. Hellquist, Ear, Nose and Throat Histopathology, 2nd edition, Springer, page 72

The sustentacular facet is anteroposteriorly elongate and, in some specimens, achieves very broad contact with the navicular facet, while in others only with the cuboid facet.

2008, Lilian P. Bergqvist, “6: Postcranial Skeleton of the Upper Paleocene (Itaboraian) "Condylarthra" (Mammalian) of Itaboraí Basin, Brazil”, in Eric J. Sargis, Marian Dagosto, editors, Mammalian Evolutionary Morphology, Springer, page 128