Read e-book online Autonomic Nerve Function in the Vertebrates PDF

By Dr. Stefan Nilsson (auth.)

ISBN-10: 3642819745

ISBN-13: 9783642819742

ISBN-10: 3642819761

ISBN-13: 9783642819766

The goal of this publication 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 ingredients and the constitution, body structure and pharmacology of the different sorts of autonomic neurons were incorporated, including chapters facing the autonomic fearful regulate of a few organs and organ platforms within the assorted vertebrate teams. even supposing wisdom in numerous of those components relies totally on reviews 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 diversifications and attainable "phylogenetic developments" within the improvement of the autonomic nerve services within the vertebrates. it's very seen that the literature created by way of the full of life examine actions in the fields of autonomic worried anatomy, histochemistry, biochemistry, pharmacology and body structure is significant certainly, and never all features of the topic could have bought reasonable remedy within the current quantity. With an analogy from astronomy, it's was hoping that the mass compressed into this e-book has reached the extent of an energy-emitting neutron superstar, instead of the black gap which might be the results of compressing too huge a mass.

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1979). An attempt to summarize some of the presynaptic receptor types known in the different types of autonomic nerve terminals has been made in Figs. 10. Very little is known about the possible functions or even the existence of presynaptic receptor systems in the lower vertebrates. A single observation on the effect of the IX-adrenoceptor antagonist phentolamine on 3H-noradrenaline overflow from a perfused teleost spleen indicates that presynaptic IX-adrenoceptors playa modulating role similar to that seen in mammals (Nilsson and Holmgren 1976).

A very appealing model of co-transmission is that proposed by Lundberg (1981) for the "classically" cholinergic neurons to the salivary glands of the cat. In this model, both acetylcholine and VIP, are stored in and released from the same neurons, and act synergistically to increase the salivary secretion. The main effect of acetylcholine is at the gland cells, and the role of VIP is chiefly to dilate the vasculature of the gland (Fig. 11, Lundberg et al. 1979, 1981 a, b, c, Lundberg 1981). A second elegant demonstration of the co-existence of acetylcholine and a peptide, in this case somatostatin, in the postganglionic vagal fibres in the heart of the toad (Bufo marin us) has been made by Campbell et al.

7 Reptiles The reptilian autonomic nervous system, which is very similar to that of mammals, does not vary fundamentally among the living orders of reptiles. Since the bulk of knowledge of the autonomic nerves is based on investigations on various lizards, this group will be used to represent the general reptilian picture. Detailed descriptions of the reptilian autonomic nervous anatomy in several of the reptilian orders can be found in Hirt (1921), Stiemens (1934), and Adams (1942), summarized in Berger and Burnstock (1979).

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Autonomic Nerve Function in the Vertebrates by Dr. Stefan Nilsson (auth.)

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