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DENDRITE, SOMA, and AXON are the main parts of a neuron. Neurons signal one another via chemicals called NEUROTRANSMITTERS released at SYNAPSES.
DENDRITES are usually the RECEIVING part, SOMA is the body of the neuron where the DNA is and most of the metabolic activity occurs, and AXON is the OUTPUT portion of the neuron.
There can be many many DENDRITES, depending on the type of neuron, and the AXON can divide near its end and have some number of AXON TERMINALS.
Neurons 'connect' at SYNAPSES (without exactly 'touching', that is without merging their cell membranes and sharing cytoplasm , and are held in place by SYNAPTIC ADHESION MOLECULES which protrude from each side of the synapse and stick to one another, binding the parts of the synapse together). A SYNAPSE is a tiny GAP between neuron structures (typically an AXON of one neuron and a DENDRITE of another), where the neural signal is conveyed from one neuron to the next via chemicals called NEUROTRANSMITTERS.
A neuron signals another neuron in this way: as a neuron FIRES, an ACTION POTENTIAL is caused to move along the axon; when it reaches an AXON TERMINAL it causes tiny bags called VESICLES to merge with the cell membrane and release NEUROTRANSMITTERS into the SYNAPTIC gap (or CLEFT) between the neurons, where the neurotransmitters diffuse quickly to the post-synaptic DENDRITE. The dendrite has LIGAND-GATED ION PORES which have structures which receive the neurotransmitters, like a key into a lock, which then causes the pores to open and allow sodium ions into the dendrite. These sodium ions can then BEGIN this same process in that next neuron, if ENOUGH signals are received to TRIGGER its firing.
A neuron can be TRIGGERED to FIRE if either MANY dendrites receive signals (called SPATIAL triggering), or if one or more dendrites receive many signals in quick succession (called TEMPORAL triggering).
What else can I help you with?
State the three main parts of a neuron and describe how an impulse travels through a neuron?
Okay, information is received through the dendrites, and then moves on the the cell body. From there, the cell's axon passes the message on to other neurons or to muscles or glands.
What parts of a neuron is capable of generating a graded potential?
The dendrites portion of a neuron will generate a potential.
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.
Parts of a neuron include?
dendrites -Apex
Where neuron cell bodies located?
The cell body, called the SOMA, is the main part of the neuron. It is the main metabolic center or region of the neuron. The neuron has 3 parts: DENDRITES (inputs), SOMA (cell body), and AXON (output). The axon is the part which FIRES when sufficient inputs reach it at the axon hillock.
What term is used to describe a neuron that is not transmitting a signal?
When a neuron is not transmitting a signal, it is at rest.
What term is used to describe a neuron that is not transmitting signal?
When a neuron is not transmitting a signal, it is at rest.
State the three main parts of a neuron and describe how an impulse travels through a neuron?
Okay, information is received through the dendrites, and then moves on the the cell body. From there, the cell's axon passes the message on to other neurons or to muscles or glands.
What are the three parts of a neuron-?
The three main parts of a nueron are: the dendrites, the axon, and the cell body.
What are the parts of neuron describe and give its the function?
A neuron has three basic parts, the cell body, the axon, and the dendrites.For more info, see the related link below.
What parts of a neuron is capable of generating a graded potential?
The dendrites portion of a neuron will generate a potential.
What neuron parts that does not have missile bodies?
Axon
What are the five parts of a reflex?
Five parts of a reflex arc are the receptor, sensory neuron (afferent), integration center, motor neuron (efferent), and effector.
What are the parts of neuron and its function?
The three main parts of a neuron are the soma (cell body), the axons, the long trailing output of a neuron and the dendrite or dendritic tree. Almost all neurons have axons, but not all axons have a dendritic tree.
What are the parts and function of neuron?
The three main parts of a neuron are the soma (cell body), the axons, the long trailing output of a neuron and the dendrite or dendritic tree. Almost all neurons have axons, but not all axons have a dendritic tree.
What is the parts of an sensory neuron?
affrent , efferent, and inerneurons
What are the parts of a neuron and what the different parts do?
parts: cell body, dendrites, and axon. i don't know what they do though..
