... in the loliginid Doryteuthis opalescens , but only after chronic denervation of chromatophores for 5–7 days. Electrically stimulated, neurally driven activity in intact individuals of both species is blocked by tetrodotoxin (TTX), but TTX has no effect on spontaneous wave activity in either D. gigas or denervated...

.... This contact appears to help push the prey toward the esophagus, and it may also serve to anchor the prey for tongue-based transport. Electromyographic recordings confirm strong activity in the retractor bulbi muscles during eye retraction. After bilateral denervation of the retractor bulbi, frogs maintain...

... cord transection, which silences the electromotor neurons that innervate the electrocytes, or destruction of the spinal cord, which denervates the electrocytes, mature electrocytes re-express sarcomeric myosin and tropomyosin, although keratin expression persists. Ultrastructural examination...

...Kiisa C. Nishikawa; Carl Gans ABSTRACT Electromyography, kinematic analysis, muscle stimulation and denervation techniques were used to investigate the muscular mechanisms of narial closure during breathing and of tongue protraction during prey capture in the marine toad Bufo marinus . Toads were...

...Dale Ritter; Kiisa Nishikawa ABSTRACT High-speed videography and muscle denervation experiments were used to quantify the feeding kinematics of Hemisus marmoratum and to test hypotheses of muscle function. The feeding behavior of H. marmoratum , which feeds on ants and termites, differs radically...

...Stephen M. Deban; Kiisa C. Nishikawa ABSTRACT Prey capture was studied in the green tree frog (Hyla cinerea) before and after denervation of either the m. genioglossus or m. submentalis using high-speed videography and kinematic analysis. The prey capture behavior and extent of tongue protraction...

...KIISA C. NISHIKAWA; GERHARD ROTH The mechanism of tongue protraction in the archaeobatrachian frog Discoglossus pictus was studied using high-speed video motion analysis before and after denervation of the submentalis and genioglossus muscles. The kinematics of prey capture were compared (1...

...Hiroshi Washio ABSTRACT Functional changes in neuromuscular transmission following denervation of the coxal depressor muscle of the cockroach Periplaneta americana have been studied by intracellular recording. Miniature postsynaptic potentials, both excitatory (MEPSPs) and inhibitory (MIPSPs...

...Hiroshi Washio ABSTRACT Functional changes following denervation have been studied by intracellular recording at the neuromuscular junction of the cockroach coxal muscle. Spontaneous subthreshold activity disappeared together with nerve-muscle transmission in about 2 days after nerve section at 26...

...Ulrich Bässler; Uta Wegner ABSTRACT The denervated thoracic ventral nerve cord produces a motor output which is similar to that observed in the intact animal during irregular leg movements (seeking movements) or rocking, but not walking. When the nerves to some legs are left intact, and the animal...