Mechanoreceptor activity in the gills of the carp. II. Gill arch proprioceptors

Degraaf, Pjf; Ballintijn, C.M.

doi:10.1016/0034-5687(87)90026-0

Cited by 23 publications

(3 citation statements)

References 16 publications

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“…All the motor nuclei are interconnected, and each receives an afferent projection from the descending trigem-inal nucleus and has efferent and afferent projections to and from the reticular formation (29). The intermediate facial nucleus, which receives vagal afferents from the gill arches that innervate a range of tonically and physically active mechanoreceptors (164) as well as chemoreceptors (607), projects to the motor nuclei (34). Finally, areas in the midbrain such as the mesencephalic tegmentum have efferent and afferent connections with the reticular formation (33,335).…”

Section: Fishmentioning

confidence: 99%

“…Satchell and Way (550) characterized mechanoreceptors on the branchial processes of the dogfish, and Sutterlin and Saunders (598) described receptors on the gill filaments and gill rakers of the sea raven. De Graaf and Ballintinjn (163,164) described slowly adapting position receptors on the gill arches and phasic receptors on the gill filaments and rakers of the carp. They interpreted their function as maintenance of the gill sieve and detection of and protection from clogging or damaging material.…”

Section: Mechanoreceptorsmentioning

confidence: 99%

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Central Control of the Cardiovascular and Respiratory Systems and Their Interactions in Vertebrates

Taylor

Jordan

Coote

1999

Physiological Reviews

335

278

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This review explores the fundamental neuranatomical and functional bases for integration of the respiratory and cardiovascular systems in vertebrates and traces their evolution through the vertebrate groups, from primarily water-breathing fish and larval amphibians to facultative air-breathers such as lungfish and some adult amphibians and finally obligate air-breathers among the reptiles, birds, and mammals. A comparative account of respiratory rhythm generation leads to consideration of the changing roles in cardiorespiratory integration for central and peripheral chemoreceptors and mechanoreceptors and their central projections. We review evidence of a developing role in the control of cardiorespiratory interactions for the partial relocation from the dorsal motor nucleus of the vagus into the nucleus ambiguus of vagal preganglionic neurons, and in particular those innervating the heart, and for the existence of a functional topography of specific groups of sympathetic preganglionic neurons in the spinal cord. Finally, we consider the mechanisms generating temporal modulation of heart rate, vasomotor tone, and control of the airways in mammals; cardiorespiratory synchrony in fish; and integration of the cardiorespiratory system during intermittent breathing in amphibians, reptiles, and diving birds. Concluding comments suggest areas for further productive research.

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Section: Fishmentioning

confidence: 99%

Section: Mechanoreceptorsmentioning

confidence: 99%

Central Control of the Cardiovascular and Respiratory Systems and Their Interactions in Vertebrates

Taylor

Jordan

Coote

1999

Physiological Reviews

335

278

View full text Add to dashboard Cite

show abstract

“…Very little is known about the kinds of sensory receptors that occur in the gills and musculature of fishes (Satchell and Way 1962). In the carp, De Graaf and Ballintijn (1987) have shown that receptors in the gill arches provide information about gill position. Poole and Satchell (1979) showed that stimulation of nociceptors of unknown morphology in the gills of the dogfish, Squalus, inhibited respiration.…”

Section: Sources Of Sensory Activity In the Vagusmentioning

confidence: 99%

Sensory interaction with central ?generators? during respiration in the dogfish

Roberts

Ballintijn

1988

J. Comp. Physiol.

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The activity in sensory and motor nerves of the gills was recorded from selected branches of the vagus nerve in decerebrate dogfish, Scyliorhinus canicula. Vagal motoneuronal activity was observed at the start of the rapid pharyngeal contraction and was followed by sensory nerve activity which preceded the slow expansion phase. Rhythmical vagal motoneuronal activity was still present after all movements had been prevented by curare paralysis although the frequency of the rhythm was higher than in the ventilating fish. Electrical stimulation of vagal sensory fibres had 3 effects on the ventilatory movements. (1) It evoked a reflex contraction of several gill muscles after a latency of about 11 ms. (2) It could reset the respiratory cycle because a stimulus given during expansion delayed the onset of the subsequent contraction. (3) The stimulus could entrain the rhythm if it was given continuously at a frequency close to that of ventilation. The vagal motor rhythm was disrupted by trigeminal nerve stimulation in the paralyzed fish but not if the motor rhythm was being entrained by vagal nerve stimulation. Vagal sensory activity may be important, therefore, in maintaining the stability of the generating circuits.

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Simulation Analysis of a GTL Process Using Aspen Plus

Djatmiko

et al. 2008

Chem Eng & Technol

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Gas-to-liquid (GTL) processes are becoming attractive due to the increasing price of crude oil. Process simulation analysis on the integrated GTL process is essential as part of an extended process integration analysis of the research subjects. The two sub-process models for the GTL process, i.e., the syngas generation process and the Fischer Tropsch synthesis (FTS) process, are analyzed in detail with AS-PEN Plus. The autothermal reforming process (ATR) is analyzed using Aspen Plus based on the Gibbs reactor model, while FTS is simulated with ASPEN Plus based on detailed kinetic models for industrial iron and cobalt catalysts. Integrated GTL processes with iron and cobalt-based catalysts were simulated using ASPEN Plus. The optimal flowsheet structures were selected for each catalyst based on the overall performance in terms of thermal and carbon efficiency and product distributions. For the cobalt-based catalyst, the full conversion concept without CO 2 removal from the FT tail gas is optimal. On the other hand, the once-through concept with two series reactors and CO 2 removal from raw syngas is considered optimal for the iron-based catalyst. The thermal efficiency to crude products is likely to be ca. 60 % for the cobalt-based catalyst, whereas it is in the range of 49-55 % for the iron-based catalyst. The carbon efficiency using the water-gas shift reaction is lower using the iron-based catalyst (61-68 %) than the cobalt-based catalyst (73-75 %). As expected, the cobalt-based catalyst is more active and selective, which offers better selectivity towards C 5 + (75-79 %). The selectivity towards C 5 + for the iron-based catalyst lies in the range 63-75 %.

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Mechanoreceptor activity in the gills of the carp. II. Gill arch proprioceptors

Cited by 23 publications

References 16 publications

Central Control of the Cardiovascular and Respiratory Systems and Their Interactions in Vertebrates

Central Control of the Cardiovascular and Respiratory Systems and Their Interactions in Vertebrates

Sensory interaction with central ?generators? during respiration in the dogfish

Simulation Analysis of a GTL Process Using Aspen Plus

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