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False. Nodes of Ranvier are sections along a mylenated axon that are not mylenated. Instead they contain numerous voltage gated Na and K channels. These channels help transmit the chemical depolarization along the axon until it reaches the synaptic node. Neurotransmitters are stored in synaptic vessicles in the synpatic node.
Wiki User
∙ 15y ago
Wiki User
∙ 16y agoYes. The neurotransmitter that is responsible for making muscles contract is acetlycholine and it is stored in the synaptic vesicles of motor neurons.
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Why are neurotransmitters sometimes referred to as a key?
When an action potential reaches the knoblike terminals at an axon's end, it triggers the release of chemical messengers called neurotransmitters. Within 1/10,000th of a second, the neurotransmitter molecules cross the synaptic gap and bind to receptor sites on the receiving neuron-as precisely as a key fits a lock.
What is a neurotransmitter and where is it located?
Neurotransmitters are molecules that travel from the synapses of one neuron to the dendrites of another neuron, activating channels on the second neuron that allow an influx of ions to rush in and start an impulse within the second neuron.
Are endorphins neurotransmitters?
Yes, endorphins are brain chemicals known as neurotransmitters. They transmit electrical signals within the nervous system.
Do the dendrites receive or release neurotransmitters?
You've sort of got it backwards: axon terminals initially release neurotransmitters into the synaptic cleft, from where they diffuse across the cleft and fit into receptor sites on ligand-gated sodium ion pores on the dendrites, causing those pores to open, allowing sodium ions into the dendrite, resulting in a change in the voltage of the dendrites membrane, which initiates the propagation of the signal along the dendrite and soma towards the axon hillock, where it may trigger an action potential in the axon.However, after the neurotransmitters have done their job at the dendrites, they can be "released" by the dendrites , as in let go of, to be re-absorbed, re-cycled, re-used by the axon terminals.The axons "give" the neurotransmitters to the dendrites as chemical messengers to convey the signal, and the dendrites "give them back" after the message has been received and conveyed onward.
What is a dorsal root and what type of neuron is found within this structure?
no
Neurotransmitters are stored in synaptic vesicles called the?
The neurotransmitter is stored in synaptic vesicles within the axon terminals.
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.
How is pain transmitted?
Nerve cell endings, or receptors, are at the front end of pain sensation. A stimulus at this part of the nociceptor unleashes a cascade of neurotransmitters (chemicals that transmit information within the nervous system) in the spine.
What does the neuron do?
Neural activitity makes your brain work, and allows sensations, thoughts, and decisions. The neuron "fires" an electrical signal, due to chemical stimulation from other neurons, which releases chemicals (neurotransmitters) to repeat the process for other neurons. It is part of a chain reaction within a neural network.
What is the function of a presynaptic terminal?
It stores neurotransmitters and release its content across synaptic cleft
Why are neurotransmitters sometimes referred to as a key?
When an action potential reaches the knoblike terminals at an axon's end, it triggers the release of chemical messengers called neurotransmitters. Within 1/10,000th of a second, the neurotransmitter molecules cross the synaptic gap and bind to receptor sites on the receiving neuron-as precisely as a key fits a lock.
What is a neurotransmitter and where is it located?
Neurotransmitters are molecules that travel from the synapses of one neuron to the dendrites of another neuron, activating channels on the second neuron that allow an influx of ions to rush in and start an impulse within the second neuron.
Are endorphins neurotransmitters?
Yes, endorphins are brain chemicals known as neurotransmitters. They transmit electrical signals within the nervous system.
Free nerve endings within the dermis?
Thermoreceptors
What region of the skin are the specialized nerve endings found?
Specialize nerve endings are found within the dermis of the skin.
What is the function of a neuron's dendries?
In general, but not always, dendrites receive neurochemical information from neurotransmitters released by axons. Dendrites are branched extensions of the neuronal cell body, or soma, that receive information from other neurons. The dendrite is the post-synaptic portion of many synapses within the nervous system that contains synaptic receptors that bind to neurotransmitters and respond by excitation or inhibition of the membrane potential.
What type of neuron is found completely within the central nervous system?
motor neuron
