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Do neurotransmitters pass directly from the axon to the dendrite?
Wiki User
∙ 11y ago
No
Wiki User
∙ 11y ago
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Which way does a dendrite conduct nerve impulses to the cell body?
the dendrites pick up msgs from other neurons lying nearby.they pass the msg to the cellbody, and then along the axon, the axon might then pass it on to another neurones. from the receptorto the sensory neuron to the relay neurons to the motor neuron to the muscle
Is and axon bulb and an axon hillock the same thing?
axon hillock = where cell body meets the axon axon bulb = end of the axon...lies very close to the dendrites of another neuron so impulses can pass over the synapse. AP Biology student *
What does the structure of a neuron look like?
There are three types of Neurone and a different structure for each. Each of these types has all the same part just in a different arangement. They have a part callled the Axon which is where they send their Action Potentials (impulses) down, parts called Dendrites which is the heavily branched part where they receive stimulationfrom and a part inbwetween called the Cell Body which is where the Nucleus is. We will look at them in the order they would come in a complex reflex arc. Firstly the Sensory Neurone: This type of cell has dendrites that are out on a stalk from the cell body. These dendrited are specialised to activate neurone when a specific stimulation type is present. The axon from this cell type is usually not so long as in motot neurones but substantially longer than in interneurones. The cell body sits roughyl in the middle ot the two branches (the axon and the dendrite branches). Secondly the Interneurone: This types of cell are what is mostly found in the brain. They have incredibly branched dedrites making them look very like a tree. Their axons may or may not be branched and their length OS also very variable. Finally the Motor Neurone: Here the cell body and the dendrites are very close together, infact the dendrites brach directly of from the cell body. The axon in a cell of this type is usually very long and not very branched at all. This part will be connected to another neurone to pass the singal (in the form of an action potential) on to whatever organ is to be affecteed.
What is an alternative term for an axon?
Dendrites: Unlike most axons, they receive signals from other neurons and pass the messages to the cell body of the neuron. Axons transmit impulses away from the cell body toward the axon endings/ terminals
In what do particles pass directly from solid to gas?
The answer is Sublimation
How neurotransmitter carry in axon hillock to axon terminal?
If I understand your question correctly, the answer is that neurotransmitters are NOT INVOLVED AT ALL in the movement of an action potential from the axon hillock to the axon terminal(s). Neurotransmitters are active in the SYNAPSES between neurons, not ALONG an axon. They are released by an axon terminal, then pass across the synaptic cleft to, for instance, a dendrite or dendritic spine of another neuron, where they fit into a receptor site of an ion pore, causing that ligand gated ion pore to open, allowing an influx of ions which begin the propagation of the chemical-voltage impulse that is a nerve signal.
Do Dendrites release neurotransmitters into the extracellular space during nerve impulse transmissions?
Receive, fundamentally, but then subsequently release when its job is done. The axon releases neurotransmitters into the synaptic cleft, where they diffuse across and fit into the receptor sites on ligand-gated ion pores located on the dendrites, where they act to open the ion pores so as to initiate the propagation of the neural signal along the dendrite ; however, those same receptor sites subsequently do release the neurotransmitters, so they can be re-absorbed and re-used by the axon terminals to pass neural signals to the dendrite as subsequent action potentials reach the ends of the axons.
What transmits messages between nerve cells?
Nerve messages pass from the axon of one nerve into the dendrite of another through a space separating them called the synaptic cleft.
Which way does a dendrite conduct nerve impulses to the cell body?
the dendrites pick up msgs from other neurons lying nearby.they pass the msg to the cellbody, and then along the axon, the axon might then pass it on to another neurones. from the receptorto the sensory neuron to the relay neurons to the motor neuron to the muscle
What is synapses?
A synapse is a small gap at the end of a neuron that allows information to pass from one neuron to the next.
Does information enter a neuron through the axon?
The different ion concentrations on the inside and outside of the cell membrane create a certain electric potential around the cell (just by being there with their charge). A strong enough change in the concentrations can cause certain ion channel proteins in the membrane to open all at once, allowing certain ions to massively diffuse through the membrane and thereby rapidly changing the potential. When a certain potential is reached, these channels will begin to close again and different potential-controlled channels will open, allowing a different kind of ions to move through the membrane and returning the membrane potential back to the previous state. Again through diffusion the now changed ion concentrations will trigger these so-called action potentials in nearby membrane regions, carrying the stimulation along the neuron's axon to the next neuron.
What is the transmission zone of a neuron?
I have never heard of the term 'transmission zone' (which may be someone's personal name for what I'm about to explain) but neurons send their chemical signals across what is known as a synapse, the region where the axon of one neuron meets up with another neuron (most often a dendrite). The space between these two neurons (the non-neuron space in the synapse) is called the synaptic cleft. Through this space, neurotransmitters pass through and act on the receiving neuron once they reach it.
What is the space where neurotransmitters pass from nerve to nerve?
synapse
Is and axon bulb and an axon hillock the same thing?
axon hillock = where cell body meets the axon axon bulb = end of the axon...lies very close to the dendrites of another neuron so impulses can pass over the synapse. AP Biology student *
What is the location where chemicals pass signals from one neuron to the next?
Synapse: neurotransmitters from the pre-synaptic membrane spill into the synaptic cleft (synaptic gap), where the electrical impulse is transferred to the dendrites of the post-synaptic membrane.
What ions pass into the cell when the channels are activated by GABA neurotransmitters?
Chloride
Which direction do messages pass down the nerve cells?
Nerve impulses are carried by neurons and passed to other neurons at junctions called synapses. cells pass messages The signal may be directly transferred or can be carried across the gap by chemicals called neurotransmitters.
