Neural Control of Dynamic 3-Dimensional Skin Papillae for Cuttlefish Camouflage.

ABSTRACT: The color and pattern changing abilities of octopus, squid, and cuttlefish via chromatophore neuromuscular organs are unparalleled. Cuttlefish and octopuses also have a unique muscular hydrostat system in their skin. When this system is expressed, dermal bumps called papillae disrupt body shape and imitate the fine texture of surrounding objects, yet the control system is unknown. Here we report for papillae: (1) the motoneurons and the neurotransmitters that control activation and relaxation, (2) a physiologically fast expression and retraction system, and (3) a complex of smooth and striated muscles that enables long-term expression of papillae through sustained tension in the absence of neural input. The neural circuits controlling acute shape-shifting skin papillae in cuttlefish show h

SUBMITTER: Gonzalez-Bellido PT 

PROVIDER: S-EPMC6059360 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature