The term âshoulder instabilityâ is used to refer to the inability to maintain the humeral head in the glenoid fossa.The ligamentous and muscle structures around the glenohumeral joint, under non-pathological conditions, create a balanced net joint reaction force. The relevant structures are listed below.
Definition of synapse. : the point at which a nervous impulse passes from one neuron to another.
An electrical synapse is a mechanical and electrical conductive link between two neighboring neurons that is formed at a narrow gap between the pre-and postsynaptic neurons known as a gap junction.n important characteristic of electrical synapses is that, most of the time, they are bidirectional (allow impulse transmission in either direction). However, some gap junctions do restrict communication to only one direction.