Ultrastructural observations on the post-synaptic membrane of denervated frog muscle

1980 ◽  
Vol 67 (10) ◽  
pp. 511-511
Author(s):  
V. Verma
Keyword(s):  
Frog Muscle ◽  
Synaptic Membrane ◽  
Denervated Frog Muscle

Mechanical threshold and inactivation in denervated frog muscle

1973 ◽  
Vol 225 (1) ◽  
pp. 171-176 ◽  
Author(s):  
BD Lindley ◽  
AC Kirby ◽  
SC Stuesse ◽  
Picken
Keyword(s):  
Frog Muscle ◽  
Mechanical Threshold ◽  
Denervated Frog Muscle

Glycogen and lactate in denervated frog muscle

1970 ◽  
Vol 57 (6) ◽  
pp. 311-312 ◽  
Author(s):  
R. V. Krishnamoorthy ◽  
P. Satyam
Keyword(s):  
Frog Muscle ◽  
Denervated Frog Muscle

scholarly journals Electrical Inexcitability of the Frog Neuromuscular Synapse

1963 ◽  
Vol 46 (3) ◽  
pp. 517-531 ◽  
Author(s):  
Robert Werman
Keyword(s):  
Action Potential ◽  
Neuromuscular Synapse ◽  
Frog Muscle ◽  
External Potential ◽  
Synaptic Membrane ◽  
Positive Potential ◽  
Inward Current ◽  
Late Negativity ◽  
Miniature Endplate Potentials ◽  
Endplate Potentials

Frog muscle endplates were explored with an extracellular microelectrode. An intracellular microelectrode nearby simultaneously monitored invasion of the endplate by a spike directly evoked by a third microelectrode placed away from the endplate in the same fiber. External positivities were seen only at sites generating miniature endplate potentials. The external positivity reached a maximum prior to the internally recorded potential and was followed by a small late negativity. Small movements away from active synaptic sites resulted in positive-negative-positive potential sequences characteristic of activity and propagation. Since the external potential is a function of membrane current, the absence of negativity associated with the rising phase of the spike indicates the absence of inward current at synaptic sites. Thus, the synaptic membrane appears not to be excited by a depolarization of the magnitude of an action potential. In an Appendix it is shown that the late negativity and earlier maximum of the external potential can be accounted for by capacitative current through passive membrane.

Increased cyclic GMP in the end-plate region of denervated frog muscle

1978 ◽  
Vol 9 (6) ◽  
pp. 445-451 ◽  
Author(s):  
D. O. Allen ◽  
R. M. Gardner ◽  
R. A. Yount ◽  
S. Ochs
Keyword(s):  
Cyclic Gmp ◽  
Frog Muscle ◽  
End Plate ◽  
Denervated Frog Muscle
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