Synapses in Buccal neurons


The Buccal interneurons usally make synapses with a lot of neurons; most of the interneurons and most of the motoneurons. The Diagram below shows pairs of traces from two neurons, OC and the B1  motoneuron. The traces represent the voltage recorded from the neurons through two micropipettes, by Agnes Vehovszky. The rapid up and down lines represent action potentials.

Stimulating activity in the OC, leads to a small upward deflection of the B1 voltage. This is evidence for an excitatory connection.
example of excitatory connection
Stimulating activity in the OC, leads to a small downward deflection of the B2 voltage, and cessation of the action potentials. This is evidence for an inhibitory connection.
example of inhibitory connection

Read On: Transmitters in Buccal neurons

Page written by Chris Elliott on 06 Nov 2003