By Dr. Stefan Nilsson (auth.)
The goal of this booklet is to supply a accomplished description and dialogue of autonomic nerve functionality within the vertebrates from a number of issues of view. Sections on anatomy, biochemistry of the transmitter elements and the constitution, body structure and pharmacology of the different sorts of autonomic neurons were incorporated, including chapters facing the autonomic fearful keep watch over of a few organs and organ structures within the various vertebrate teams. even though wisdom in different of those components is predicated totally on experiences of mammals, a undeniable emphasis has been put on the autonomic nerve services within the non-mammalian vertebrates to explain, from a comparative physiological standpoint, the variations and attainable "phylogenetic traits" within the improvement of the autonomic nerve capabilities within the vertebrates. it's very noticeable that the literature created via the energetic examine actions in the fields of autonomic frightened anatomy, histochemistry, biochemistry, pharmacology and body structure is enormous certainly, and never all features of the topic can have bought reasonable remedy within the current quantity. With an analogy from astronomy, it truly is was hoping that the mass compressed into this e-book has reached the extent of an energy-emitting neutron megastar, instead of the black gap which might be the results of compressing too huge a mass.
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Additional info for Autonomic Nerve Function in the Vertebrates
Robert Santer) Fig. 13. Extra-adrenal chromaffin cells (SIF cells) (arrows) surrounding the axon-hillock region of an adrenergic neuron from a sympathetic chain ganglion of the cod, Gadus morhua. Note also the nucleus (n) in the adrenergic nerve cell body. Calibration bar= 50 /lm. Falck-Hillarp fluorescence histochemistry Fig. 14. Varicose adrenergic nerve terminal from the atrium of a lizard, Agama caudospinosa. Note the individual varicosities along the nerve terminal. Calibration bar = 5 /lm.
Abbreviations: eg, coeliac ganglion; pgsn, preganglionic splanchnic nerves. (Reproduced with permission from Nilsson 1978) (Langley and Orbeli 1911, Campbell and Duxson 1978, Nilsson 1978) this longstanding controversy is still not resolved. In anuran amphibians postganglionic fibres from the sympathetic chains extend forward to join the vagus (X) and the glossopharyngeal (IX), and are distributed to the heart, lungs and gut via these nerves. At least in some species, fibres from the sympathetic chain ganglia also enter the facial (VII) and trigeminal (V) nerves.
1980). 47 The modification of the transmitter release via the presynaptic receptor systems probably involves interference with some step in the Ca 2 + -dependent release mechanism. With the recognition of the co-existence of several transmitters and/or neuromodulators within the same neuron (Sect. 5), a potentially complex picture of synaptic regulation emerges. The presence of different types of nerve fibres within the same Schwann cell sheath further increases the possibilities of a varied peripheral heteromodulation of transmitter release (Richardson 1964, Yamauchi 1969, Westfall 1977, Burnstock 1980b, 1981, Fredholm and Hedqvist 1980).
Autonomic Nerve Function in the Vertebrates by Dr. Stefan Nilsson (auth.)