Abstract
Saline solutions made hyperosmotic by addition of sucrose increase the discharge frequency of miniature spontaneous junctional potentials at neuromuscular junctions and sympathetic ganglia and can alter structure in both muscle and nerve. Since effects of such solutions on synaptic structure are unknown, we have investigated the influence of hyperosmolarity on function and ultrastructure in synaptic regions of isolated abdominal sympathetic ganglia of the bullfrog, Rana catesbiana.Synaptic transmission was monitored by extracellular recording of postganglionic responses to supramaximal.preganglionic stimulation (0.3 Hz). Ganglia were first equilibrated in normal frog Ringer's solution, then transferred to test solutions, and some ganglia were subsequently returned to normal Ringer's to examine functional and structural recovery.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Proceedings, annual meeting, Electron Microscopy Society of America
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
