What is "postsynaptic"

Usage examples of "postsynaptic".

There are a number of membrane proteins which can be phosphorylated in this way, some postsynaptic, some presynaptic, and the enzymes responsible for catalysing the phosphorylation are known collectively as protein kinases.

By the mid-1970s, they had shown that during habituation in the isolated ganglion there was a steady decrease in the amount of serotonin released from the sensory presynaptic terminal, without there being any change in the responsiveness of the postsynaptic serotonin receptors.

Bullock, S, Rose, S P R, and Zamani, R Characterisation and regional localisation of pre- and postsynaptic glycoproteins of the chick forebrain showing changed fucose incorporation following passive avoidance training.

Thus any change in the structure of dendrites and the location of the synapses on them can change the neurophysiological relations of pre and postsynaptic cells.

There are a number of membrane proteins which can be phosphorylated in this way, some postsynaptic, some presynaptic, and the enzymes responsible for catalysing the phosphorylation are known collectively as protein kinases.

There are increases in the numbers of synapses in the LPO, in the numbers of vesicles per synapse, and even in the length of the postsynaptic thickenings in left IMHV and LPO.

To be precise, the synapse is the site where presynaptic terminal and postsynaptic membrane are in close contact, recognizable in the photograph as characteristic dark, thick regions where the presynaptic and postsynaptic membranes virtually - but not quite - touch.

The graph shows the brief pulse of the action potential, which travels down the axon like a wave, normally commencing at the site where the axon leaves the nerve cell body and terminating at the synapse, where it triggers the release of neurotransmitters which diffuse across to the postsynaptic cell, carrying the depolarizing signal to it.

If habituation occurs by reduction of the postsynaptic response at a single synapse, it could logically be a consequence of either pre- or postsynaptic processes, or of course a combination of both.

LTP is a postsynaptic effect - that is, it occurs in a neuron as a result of incoming stimuli along a pathway which synapses on it - one of the first questions was to identify the neurotransmitter involved in this signaling.

For instance, there could be a steady reduction in the amount of transmitter released by the presynaptic cell, or a modification of the receptors on the postsynaptic side to make them less responsive to a given amount of transmitter released, or both mechanisms could be operating.

This thickening is the area of the postsynaptic membrane which contains the receptor molecules and which traps the transmitter released from the many small vesicles visible packed into the presynaptic terminal.

Although glutamate is one amongst many dozens of transmitters, it itself interacts with postsynaptic cells in several different ways.

During memory formation, transmitter (dark arrow: glutamate) released from the presynaptic side interacts with receptor (II) on the postsynaptic side, resulting in phosphorylation of membrane proteins (•) by protein kinase C (PK) and entry of calcium (Ca).

Bullock, S, Rose, S P R, and Zamani, R Characterisation and regional localisation of pre and postsynaptic glycoproteins of the chick forebrain showing changed fucose incorporation following passive avoidance training.