The 'neuropil' formed by these synapses forms the molecular layers of the compound retina, and the cells themselves form the nuclear layers.
The neurones of the second order, the cells of which form the internal nuclear layer, and their processes form synapses in the internal molecular layer with 3.
The place where these processes come together is called a synapse, and the tangle of fine fibres formed at a number of synapses forms the 'neuropil.
It is therefore probably to perikarya and synapses that the greater part of the co-ordination, elaboration and differentiation of nervous reactions is due.
Now, perikarya and synapses are not present in the white matter of the central nervous organ, any more than they are in nerve-trunks.
They are supposed to be due to a change at the synapsesconnecting neurone with neurone in the grey matter.
For while the synapses (nerve junctions) may offer high resistance to the passage of a new stimulus, they will lend themselves more and more readily to the passage of stimuli by which they have already been traversed.
At such times there seems to be an unusually high resistance at the synapses or nerve junctions (where there is a lowering of resistance to the passage of a nerve current when habits are easily formed).
If the stimulus be not repeated, the synapses may be but temporary, and the memory fade as the group of cells is occupied by a new memory of some more potent sense stimulus.
If the same stimulus be often repeated, the synapses between groups of cells may become permanent.
Thus may be produced growth of axons in certain directions, and synapses of this cell with that.
It cannot be fatigue that produces the hypothetical interruptions of the dendritic synapses and then induces sleep, for sleep can follow after fatigue of a very limited kind.
Ramon y Cajal, on the other hand, believes that the neuroglia cells are contractile, and may expand so as to interpose their branches as insulating material between the synapses formed by the dendrites of the nerve cells.
Many association tracts and synapses are laid down in the central nervous system when the child is born.
Brain function depends on dendrites and end-brushes, forming synapses in the cortex, and such minute structures make little impression on the total brain weight.
The fluctuation probably represents periodic fatigue and recovery at the brain synapses concerned in observing the faint stimulus.
These incoming axons terminate in end-brushes and so form synapses with the dendrites of the local {50} nerve cells.
The axons of the cells in the first center (or some of them) extend out of this center and through the white matter to the second center, where they terminate, their end-brushes forming synapses with the cells of the second center.
According to this theory, unimpeded progress of nerve currents through the brain is pleasant, while resistance encountered at the brain synapses is unpleasant.
That ought to be plenty, and yet--well, perhaps sometimes they are not well developed, or their synapses are not close enough to make good connections.
Figure text: axon to brain cortex, dendrites, synapses in brain stem, axons of sense cells sense cells in nose.
It means that the synapses between stimulus and response are so improved, when traversed by nerve currents in the making of a reaction, that nerve currents can get across them more easily the next time.
Just why certain synapses should be thus connected is the whole question of heredity.
All synapseswhich were involved in the diseased personality have now been reduced to an atypical, uniform threshold.
Remembrance occurs when, at all the synapses in a given network 'y,' the permanently echoing frequencies are duplicated as transient circulating frequencies.
Gral would not have called it laziness; his crude synapses could not have contained the thought, much less given it relevance.
But inevitably his synapses took hold, the neuronic links grooved, and to Gral one thought emerged: the vines would never do.
When you form a habit, the synapses of the nerves involved are sort of worn thin, so the nerves themselves are, in a sense, short-circuited.
A Question of Synapses Pat almost ran the few blocks to her home.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "synapses" in a variety of sentences. We hope that you will now be able to make sentences using this word.
