Innervation of coxal depressor muscles in the cockroach, Periplaneta americana.
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چکیده
منابع مشابه
Coxal depressor muscles of the cockroach and the role of peripheral inhibition.
In a previous paper (Pearson & lies, 1971) the pattern of innervation of the coxal depressor muscles of the cockroach Periplaneta americana was described. On the basis of microelectrode recordings these muscles could be classified into three types: (i) those receiving one 'fast' axon, (ii) those with one 'slow' and branches of three different common inhibitory neurones, and (iii) those whose fi...
متن کاملStructure and synaptic activation of the fast coxal depressor motoneurone of the cockroach, Periplaneta americana.
Now that behavioural descriptions of walking in the cockroach are available (Delcomyn, 1971) attempts are being made to elucidate the neuronal mechanisms involved in leg movements. Innervation of some of the muscles utilized in walking has been studied and the patterns of activity of motoneurones to both coxal levator and depressor muscles have been described in the intact, free-walking animal ...
متن کاملIonic Basis of Membrane Potential and of Acetylcholine-evduced Currents in the Cell Body of the Cockroach Fast Coxal Depressor Motor Neurone
The ionic basis of the resting potential and of the response to acetylcholine (ACh) has been investigated in the cell body membrane of the fast coxal depressor motor neurone in the metathoracic ganglion of the cockroach Periplaneta americana. By means of ion-sensitive microelectrodes, intracellular concentrations of three ion species were estimated (mmoll"): [K]j, 144±3; [Na]j, 9±1; [Cl~],, 7±1...
متن کاملTime Course of Failure and Resumption of Excitatory and Inhibitory Transmission in the Denervated Muscle Fibres of the Cockroach by Hiroshi Washio
1. Functional changes in neuromuscular transmission following denervation of the coxal depressor muscle of the cockroach Periplaneta americana have been studied by intracellular recording. 2. Miniature postsynaptic potentials, both excitatory (MEPSPs) and inhibitory (MIPSPs), disappeared by about 24 h following nerve section or crush when animals were maintained at 26°C. Generally this was acco...
متن کاملNeural Lesions Can Cause Dendritic Sprouting of an Undamaged Adult Insect Motoneurone
The effect of nerve lesions upon the dendritic branching of the metathoracic 'fast' coxal depressor motoneurone in the adult cockroach, Periplaneta americana has been studied by intracellular cobalt injection. Dendrites may sprout after several nerve trunks entering the metathoracic ganglion are lesioned. Direct surgical damage to the neurone is not a pre-requisite for sprouting. New sprouts ma...
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عنوان ژورنال:
- The Journal of experimental biology
دوره 54 1 شماره
صفحات -
تاریخ انتشار 1971