The dendrites and cell body. Incoming signals from other neurons are received here.
Dendrites.
A dendrite (or often a small protrusion from it called a dendritic spine) is the structure of a neuron that is usually the input to the neuron. A synapse is what makes the input to a neuron, via chemical messengers called neurotransmitters. And inputs to a neuron cansometimes be made to the soma (body) of a neuron, or even to the axon. But the dendrites are the "normal" input structures.
The part of a neuron that typically receives input is called the dendrite. Dendrites are branching extensions of the neuron that receive signals from other neurons or sensory receptors, allowing the neuron to process incoming information. These signals can then be transmitted to the neuron's cell body for further processing.
Each neuron in the CNS receives input from other neurons through synapses, which are specialized junctions where signals are transmitted from one neuron to another. These synapses can be excitatory or inhibitory, meaning they either increase or decrease the likelihood of the receiving neuron firing an action potential.
The "Tigger zone" in a unipolar neuron is the initial segment of the axon where action potentials are generated. Here, graded potentials from the dendrites accumulate and if they reach a certain threshold, an action potential is triggered.
dendrites
Dendrites.
A dendrite (or often a small protrusion from it called a dendritic spine) is the structure of a neuron that is usually the input to the neuron. A synapse is what makes the input to a neuron, via chemical messengers called neurotransmitters. And inputs to a neuron cansometimes be made to the soma (body) of a neuron, or even to the axon. But the dendrites are the "normal" input structures.
The part of a neuron that typically receives input is called the dendrite. Dendrites are branching extensions of the neuron that receive signals from other neurons or sensory receptors, allowing the neuron to process incoming information. These signals can then be transmitted to the neuron's cell body for further processing.
Axons are the output element of a neuron, and dendrites are the input elements of a neuron.
Each neuron in the CNS receives input from other neurons through synapses, which are specialized junctions where signals are transmitted from one neuron to another. These synapses can be excitatory or inhibitory, meaning they either increase or decrease the likelihood of the receiving neuron firing an action potential.
The simplest sense, the all-or-none principle of neuronal firing means that a neuron will either fire or it won't, there is no "half" firing. When a neuron receives excitatory input.
The "Tigger zone" in a unipolar neuron is the initial segment of the axon where action potentials are generated. Here, graded potentials from the dendrites accumulate and if they reach a certain threshold, an action potential is triggered.
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Neural input happens at the dendrites (dendritic tree) of the neuron, but some neurons, notably the sympathetic, can receive input at the axon hillock (where the axon leaves the soma).
The electrical impulse travels into the dendrites, the "input" of the neuron, and into the soma or "body" where the signal gets processed. From there, the processed signal travels down the axon or "output" and into the dendrites of another neuron.
The secretory zone of a neuron refers to the region where neurotransmitters are synthesized, stored, and released. It includes the synaptic vesicles that contain the neurotransmitters and the presynaptic terminal where they are released into the synaptic cleft. This zone plays a crucial role in transmitting signals between neurons and facilitating communication in the nervous system.