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Neural control of postural muscles inCallianassa californiensisand three other species of decapod crustaceans

Authors
Journal
Comparative Biochemistry and Physiology Part A Physiology
0300-9629
Publisher
Elsevier
Publication Date
Volume
40
Issue
1
Identifiers
DOI: 10.1016/0300-9629(71)90142-3
Keywords
  • Crustacea
  • Neural Control Of Muscles
  • Neuromuscular
  • Peripheral Inhibition
  • Callianassa Californiensis
  • Upogebia Pugettensis
Disciplines
  • Biology

Abstract

Abstract 1. 1. The superficial flexor muscles of Callianassa californiensis are divided into two layers of muscle fibers which differ in contraction speed. 2. 2. The flexor motor system consists of five excitatory neurons and one inhibitory neuron per half segment. 3. 3. The two layers of muscle are served by different subsets of the excitatory neurons whose physiological properties are matched to the contractile properties of the muscle fibers they innervate. 4. 4. Serially homologous neurons in Callianassa differ in size and physiological properties. 5. 5. Flexor neurons in Upogebia pugettensis and Procambarus clarkii differ from their homologs in Callianassa in physiological properties, in central connections and in peripheral connections.

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