New Collegiate Dictionary. 2001.
postsynaptic — Pertaining to the area on the distal side of a synaptic cleft. * * * post·syn·ap·tic .pōst sə nap tik adj 1) occurring after synapsis <a postsynaptic chromosome> 2) relating to, occurring in, or being part of a nerve cell by which a wave of … Medical dictionary
postsynaptic — | ̷ ̷+ adjective Etymology: post + synaptic : following synapsis : belonging to the kind that exists after synaptic alteration a postsynaptic chromosome … Useful english dictionary
Postsynaptic potential — Postsynaptic potentials are changes in the membrane potential of the postsynaptic terminal of a chemical synapse. Postsynaptic potentials are graded potentials, and should not be confused with action potentials although their function is to… … Wikipedia
Postsynaptic density — The postsynaptic density (PSD) is a cytoskeleton specialization at neuronal synapses that was originally identified as an electron dense region at the membrane of a postsynaptic neuron, as viewed by electron microscopy. PSDs are usually composed… … Wikipedia
postsynaptic potential — In a synapse, a change in the resting potential of a postsynaptic cell following stimulation of the presynaptic cell. For example, in a cholinergic synapse, the release of acetylcholine from the presynaptic cell causes channels to open in the… … Dictionary of molecular biology
postsynaptic potential — a change in polarization of a postsynaptic neuron; see excitatory postsynaptic p. and inhibitory postsynaptic p … Medical dictionary
postsynaptic cell — In a chemical synapse, the cell that receives a signal (binds neurotransmitter) from the presynaptic cell and responds with depolarization. In an electrical synapse, the postsynaptic cell would just be downstream, but since many electrical… … Dictionary of molecular biology
postsynaptic protein — (= 43 kD postsynaptic protein) A peripheral membrane protein thought to help anchor acetylcholine receptors in the postsynaptic membrane. Highly conserved … Dictionary of molecular biology
postsynaptic potential — ▪ biology a temporary change in the electric polarization of the membrane of a nerve cell ( neuron). The result of chemical transmission of a nerve impulse at the synapse (neuronal junction), the postsynaptic potential can lead to the… … Universalium
postsynaptic membrane — the area of plasma membrane of a postsynaptic cell, either a muscle fiber or a neuron, that is within the synapse and has areas especially adapted for receiving neurotransmitters … Medical dictionary
