Figure 7
From: Nano-architecture of gustatory chemosensory bristles and trachea in Drosophila wings

Schematic that summarizes the microphysics of the Drosophila wing chemosensory hair.
(A) Schematic of a wing chemosensory hair structure showing a dendrite (black) surrounded by lymph (red). The top third of the hair from the base does not contain lymph and allows the exchange with the surrounding air environment. The sub-micronic diameter of this capillary structure exhibits the conditions for the physics of adsorption of volatile molecules. Letters represent the positions of the laser beam that generated the Raman spectra. (B) Schematic of the putative mechanism of a chemosensory hair showing an opened capillary structure. Inside the apical pore, the environmental volatile compounds are adsorbed, condensed and transferred by dissolution to the lymph (red) to access the dendrite (black). VOC denotes “volatile organic compounds”.