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.
The synapse is the chemical junction between the axon terminals of one neuron and the dendrites of the next. It is a gap where specialized chemical interactions can occur, rather than an actual structure.