...Masazumi Iwasaki; Ayako Ohata; Yoshinori Okada; Hideo Sekiguchi; Akiyoshi Niida SUMMARY The relationship between segmental mobility and the organisation of thoracic stretch receptors was examined in the deep-sea isopod Bathynomus doederleini , which shows a developed adaptive behaviour during...

... . 92 , 163 – 199 . Brown , M. C. ( 1967 ). Some effects of receptor muscle contraction on the responses of slowly adapting abdominal stretch receptors of the crayfish . J. Exp. Biol . 46 , 445 – 458 . 10.1242/jeb.46.3.445 Cannone , A. J. and Bush , B. M. H. ( 1981...

... support earlier evidence suggesting that other receptor systems can mediate load compensation in the abdomen of the crayfish. References Bastiani , M. J. and Mulloney , B. ( 1988 ). The central projections of the stretch receptor neurons of crayfish. I. Structure, variation...

... and buoyancy. In the present study, we test the hypotheses (1) that gill ventilation and type I air breaths are controlled by O 2 -sensitive chemoreceptors located in the branchial region, and (2) that type II air breaths are controlled by gas bladder mechanosensitive stretch receptors. Hypothesis 1 was tested...

...H. Moser; N. Mair; F. Fresser ABSTRACT In the stretch receptor neurones of the crayfish Astacus astacus , the intracellular pH (pHi), the intracellular Na + concentration ([Na + ] i ) and the membrane potential ( E m ) were measured simultaneously using ion-selective and conventional...

.... The results provide the first demonstration that this load-compensating reflex loop operates during naturally evoked extension of the abdomen under constant load. 04 07 1995 © The Company of Biologists Limited 1995 stretch receptor load compensation abdominal posture crayfish Cherax...

...N. Mair; H. Moser; F. Fresser ABSTRACT Regulation of intracellular pH (pHi) following acidosis induced by NH 4 + /NH 3 exposures was re-investigated in a crayfish stretch receptor neurone using H + - and Na + -selective microelectrodes. All experiments were performed in nominally HCO 3 − /CO 2...

...F. Fresser; H. Moser; N. Mair ABSTRACT An NH 4 + -selective membrane for microelectrodes (NH 4 ISMs) was tested under ‘biological conditions’ in normal Astacus saline (NAS), two simulated intracellular salines (SIS) and the sensory neurone of the crayfish stretch receptor. The effects of several...

...K. G. Pearson; J. M. Ramirez ABSTRACT Previous studies on the forewing stretch receptors (FSRs) of locusts have suggested that feedback from these receptors during flight contributes to the excitation of depressor motoneurones and reduces the duration of depolarizations in elevator motoneurones. We...

...Jan-Marino Ramirez; Ian Orchard ABSTRACT Modulatory actions of various biogenic amines and peptides on the locust forewing stretch receptor (SR) were examined. The response of the SR to sinusoidal wing movements was unaffected by physiological concentrations (5×10 −8 mol l −1 ) of the peptides AKHI...

...A. Niida; K. Sadakane; T. Yamaguchi The organization of the four types of stretch receptor organs, termed TSR-1, TSR-2, TSR-3 and TSR-4, is shown in Fig. 1 . The stretch receptors are bilateral and located dorsally in each thoracic segment from the second to the eighth thoracic segment...

...Dorothy H. Paul ABSTRACT In crayfish, the movement of each swimmeret is monitored by a pair of nonspiking stretch receptors (NSR) with central somata and dendrites that are embedded in an elastic strand at the base of the appendage. I provide evidence that the neuropile segments of these primary...