0
Acetylcholine is NOT the only chemical transmitter released by nerve endings. There are literally dozens. Ach is only the first discovered. Others include: glutamate, aspartate, serine, gamma-aminobutyric acid, glycine,dopamine, norepinephrine, epinephrine (adrenaline), histamine, serotonin, melatonin, adenosine, anandamide,
True ACh was discovered first and is not the only neurotransmitter released, BUT Acetylcholine is basically the one of most important in producing an impulse.
Still curious? Ask our experts.
Chat with our AI personalities
Blake
Judy
MaxineWhen a nerve impulse reaches the nerve endings, neurotransmitters such as acetylcholine, dopamine, serotonin, or norepinephrine are released into the synapse to transmit the signal to the next neuron or target cell. These neurotransmitters bind to receptors on the receiving cell, initiating a response.
Neurotransmitters are released (via exocytosis of neurotransmitter-containing vesicles) into the synapse when the action potential reaches the end of the axon. There are many different types of neurotransmitters, such as:
- acetylcholine
- glycine
- dopamine
- norepinephrine
- serotonin
- glutamic acid
- aspartic acid
- enkephalins
- endorphins
...
Add your answer:
Earn +20 pts
In a neuron impulses move?
In a neuron, impulses move through electrical signals known as action potentials. These action potentials are generated when a neuron receives enough stimulation to reach a threshold, causing a rapid change in membrane potential. The action potential then travels down the length of the neuron's axon until it reaches the next neuron or target cell.
Which process stops when a ribosome reaches a stop codon?
When a ribsome reaches a stop codon, the translation process stops and a protein is released.
Why is the chemical synapses be release when a neural impulse reaches the end of an axon?
Chemical synapses release neurotransmitters when a neural impulse reaches the end of an axon to transmit information to the next neuron. This release of neurotransmitters allows for communication between neurons and helps propagate the neural impulse across the synaptic gap to continue the signal.
When the action potential gets to the end of the axon?
When the action potential reaches the end of an axon, it causes special chemical messages called neurotransmitters to be released across the space between the neurons (the synapse).
Is it correct that synaptic clefts prevents an impulse from being transmitted directly from one neuron to another?
Yes, that is correct. The synaptic cleft is a small gap between neurons, and it prevents direct transmission of impulses. When an impulse reaches the end of a neuron, it triggers the release of chemical messengers called neurotransmitters into the synaptic cleft. These neurotransmitters then bind to receptors on the adjacent neuron, allowing the impulse to be transmitted indirectly.
