0
Yes, neurotransmitters diffuse across the synaptic cleft to transmit a neural signal; the actual neural impulse(spike) occurs when the neuron fires in response to a sufficiency of signals received.
Wiki User
∙ 10y ago
Wiki User
∙ 14y agoyes they can
Add your answer:
Earn +20 pts
What is liberated into the synaptic cleft?
neurotransmitters
How do Presynaptic neurons release neurotransmitters?
They don't, the neurotransmitters stay on either side of the synapse. Neurotransmitters are released when the synaptic vesicles fuse with the presynaptic neuron's membrane, so as to release them into the synaptic cleft.
What is the name of the cell that releases the neurotransmitters?
Exocytosis. As a result of the influx of Calcium ions, the synaptic vesicles transport the neurotransmitter Ach (Acetylcholine) to the presynaptic membrane, the vesicles fuse to the membrane, and the neurotransmiffer, Ach, diffuses. Once the neurotransmitters cross the synaptic cleft, they bind to the receptors on the post synaptic membrane. Hope it helps a bit.
Which area would contain an abundance of vesicles containing neurotransmitter?
Neurotransmitters are stored in synaptic vesicles within axonal terminals for release into the synaptic cleft.
What is the function of a presynaptic terminal?
It stores neurotransmitters and release its content across synaptic cleft
What is released when an impulse reaches the end of a neuron?
The impulse ends in the terminal or synaptic knob. Here neurotransmitters are put in vesicles and travel across the synaptic cleft to the next neuron.
Is a minute gap between a neuron and target cell across which neurotransmitters travel?
Synaptic cleft
How do neurotransmitters transmit signals across the synapse?
after impulse conductionby postsynaptic neurons is initiated, neurotransmitters activity is rapidly terminated. Either one or both of two mechanisms cause this. Some neurotransmitters molecules difuseout of the synaptic cleft back into synaptic knobs
Chemicals that cross the synaptic space from the axon to the dendrites are called?
Neurotransmitters.
Explain what happens to neurotransmitters after they are released?
After neurotransmitters are released in to the synaptic cleft - from the presynaptic neuron, they bind with there specific receptor cites found on the postsynaptic neurons cell membrane. Some neurotransmitters then become inactive by enzymes whiles other simply drift away from the synaptic cleft. Reuptake can also occur where the presynaptic neuron sponges up (or takes back) the remaining neurotransmitters left behind.
What reactions leap across synapses?
Reactions don't leap across synapses but neurotransmitters will diffuse across the synaptic cleft.
Does the impulse cross the neuromuscular junction when a muscle contracts?
No, the impulse traveling down the axon ends at the axon terminal but causes the axon terminal to release neurotransmitters. The neurotransmitters diffuse across the synaptic cleft causing the sarcolemma of the muscle to initiate its own impulse.
