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ac = attachment cell bl = basement lamina co = collar cp = cap db = distal body

ac = attachment cell bl = basement lamina co = collar cp = cap db = distal body ds =dendritic sheath gl = glia id = inner dend. seg. mt = microtubules od =outer dend. sheath tb = tubular body th = thecogen cell sc = sensory cell. Insect cuticular mechanoreceptors. a.

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ac = attachment cell bl = basement lamina co = collar cp = cap db = distal body

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  1. ac = attachment cell bl = basement lamina co = collar cp = cap db = distal body ds =dendritic sheath gl = glia id = inner dend. seg. mt = microtubules od =outer dend. sheath tb = tubular body th = thecogen cell sc = sensory cell

  2. Insect cuticular mechanoreceptors a Keil 1997 Microsc. Res. Technique 39: 506-539 ac = attachment cell th = thecogen cell sc = sensory cell b d c

  3. ac = attachment cell bl = basement lamina co = collar cp = cap db = distal body ds =dendritic sheath gl = glia id = inner dend. seg. mt = microtubules od =outer dend. sheath tb = tubular body th = thecogen cell sc = sensory cell c b Insect mechanoreceptor Keil 1997 Microsc. Res. Technique 39: 506-539

  4. Keil 1997 Microsc. Res. Technique 39: 506-539

  5. ac = attachment cell bl = basement lamina co = collar cp = cap db = distal body ds =dendritic sheath gl = glia id = inner dend. seg. isl = inner sensillum lymph mt = microtubules od =outer dend. Sheath pb = proximal basal body tb = tubular body th = thecogen cell tr = trichogen cell sc = sensory cell Keil 1997 Microsc. Res. Technique 39: 506-539

  6. Cricket filiform receptor ac = attachment cell bl = basement lamina co = collar cp = cap db = distal body ds =dendritic sheath gl = glia id = inner dend. seg. isl = inner sensillum lymph mt = microtubules od =outer dend. Sheath pb = proximal basal body tb = tubular body th = thecogen cell tr = trichogen cell sc = sensory cell Keil 1997 Microsc. Res. Technique 39: 506-539 c. Transitory region

  7. ac = attachment cell bl = basement lamina co = collar cp = cap db = distal body ds =dendritic sheath gl = glia id = inner dend. seg. isl = inner sensillum lymph mt = microtubules od =outer dend. Sheath pb = proximal basal body tb = tubular body th = thecogen cell tr = trichogen cell sc = sensory cell Fly “macrochaeta” receptor Keil 1997 Microsc. Res. Technique 39: 506-539

  8. Cockroach cercal filiform receptor

  9. ac = attachment cell bl = basement lamina co = collar cp = cap db = distal body ds =dendritic sheath gl = glia id = inner dend. seg. isl = inner sensillum lymph mt = microtubules od =outer dend. Sheath pb = proximal basal body rg = ridge of dend. sheath tb = tubular body th = thecogen cell tr = trichogen cell sc = sensory cell se = stimulating edge Tubular body

  10. Cricket filiform sensilla

  11. Fly campaniform sensilla

  12. Fly campaniform sensilla

  13. Scolopidial receptor ac = attachment cell bl = basement lamina co = collar cp = cap db = distal body ds =dendritic sheath gl = glia id = inner dend. seg. isl = inner sensillum lymph mt = microtubules od =outer dend. Sheath pb = proximal basal body rg = ridge of dend. sheath tb = tubular body th = thecogen cell tr = trichogen cell sc = sensory cell se = stimulating edge

  14. Mulder-Rosi, J., G.I. Cummins and J.P. Miller “The cricket cercal system implements delay-line processing. J. Neurophysiol. (on line Jan 27, 2010)

  15. Experimental set-up for air-jet stimulation Mulder-Rosi et al 2010 J. Neurophysiol (online Jan 27, 2010)

  16. Single afferent, averaged response “ensemble afferent responses” from 1 stimulation point triggering average on 1 sensillum on DORSAL SURFACE (sensitive to transverse wind current)

  17. Spatial independence of conduction speed Slope = 1.87 ± 0.09 m/s 23 units

  18. Stimulus-sequence-dependence of proximal compound AP

  19. Interneuron responses to stimulus sequences 50 stimuli

  20. 3 interneuron response profiles Sequence-independent IN Tip-before base preference Tip and base close in time preference (but bulk flow excluded)

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