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A synapse is a specialized region of communication between two ______, at least one of which is an excitable cell.
A synapse is a specialized region of communication between two ______, at least one of which is an excitable cell.
cells
In an electrical synapse, ionic current can pass directly between the two cells by means of ______ junctions, allowing AP propagation.
In an electrical synapse, ionic current can pass directly between the two cells by means of ______ junctions, allowing AP propagation.
gap
Gap junctions are found between cardiac muscle cells, between some types of smooth muscle cells, and in some cases between ______.
Gap junctions are found between cardiac muscle cells, between some types of smooth muscle cells, and in some cases between ______.
neurons
Even 'fast' chemical synapses incur a synaptic delay, of perhaps 0.5 to 2 ______.
Even 'fast' chemical synapses incur a synaptic delay, of perhaps 0.5 to 2 ______.
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The neuromuscular junction is an important model for the study of fast synaptic transmission, also referred to as ______ transmission because it involves opening ion channels directly.
The neuromuscular junction is an important model for the study of fast synaptic transmission, also referred to as ______ transmission because it involves opening ion channels directly.
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Metabotropic transmission, which is slower, involves second messengers which may modulate ______ activity.
Metabotropic transmission, which is slower, involves second messengers which may modulate ______ activity.
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All the fibres innervated by the same axon will contract together and are referred to collectively as a ______ unit
All the fibres innervated by the same axon will contract together and are referred to collectively as a ______ unit
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Do plants have anything analogous to electrical synapses between cells in animals?
Do plants have anything analogous to electrical synapses between cells in animals?
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Each NMJ consists of a branching axon terminal, contained within a gutter in the muscle fibre ______
Each NMJ consists of a branching axon terminal, contained within a gutter in the muscle fibre ______
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The transmitter acetylcholine (ACh) is released from a number of swellings called terminal ______ within the end-plate
The transmitter acetylcholine (ACh) is released from a number of swellings called terminal ______ within the end-plate
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The post-synaptic membrane contains, on the crests of the junctional folds, a high density of nicotinic acetylcholine receptors (NAChR), which are ligand-gated ion ______
The post-synaptic membrane contains, on the crests of the junctional folds, a high density of nicotinic acetylcholine receptors (NAChR), which are ligand-gated ion ______
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Having diffused across the synaptic cleft, one ACh molecule must bind to each of the α subunits to cause the channel to ______
Having diffused across the synaptic cleft, one ACh molecule must bind to each of the α subunits to cause the channel to ______
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