List the number 1-4 **Sort the Sequence of Events Happening When a Neuron is Stimulated**1. **Stimulus reaches the membrane of a dendrite.**2. **Stimulus spreads throughout the soma.**3. **Stimulus travels along the axon.**4. **Stimulus reaches the synaptic knob.**This sequence outlines the pathway of a neural impulse through different parts of a neuron. The impulse initiates at the dendrites, travels through the neuronal cell body (soma), moves down the axon, and finally reaches the synaptic knobs where it can transfer to another neuron. Visual indicators in the form of up and down arrows suggest the ability to rearrange these steps in an interactive manner.

Neurons are structural and functional units of the nervous system. Neurons show the property of sensitivity, excitability and conductivity. Answer 1. Stimulus reaches the membrane of dendrites. 2. Stimulus spreads throughout the soma. 3. Stimulus travels along the axon. 4. Stimulus reaches the synaptic knob. The neuron consists of dendrites, soma and axon. Dendrites have receptors that receive the stimulus and transmit it towards the soma. Dendrites show centripetal transmission. From soma, the graded potential travels to axon hillock. At axon hillock, action potential or nerve impulse is generated due to sodium influx during the depolarization stage. The action potential travels along the axon and reaches the axon terminal. Axon terminal consists of telodendria, synaptic knob and synaptic vesicles. Synaptic vesicles contain neurotransmitters such as acetylcholine. When an action potential reaches to axon terminal then neurotransmitters are released from the synaptic vesicle. This neurotransmitter binds to a receptor on another neuron and in this way, information is transmitted from one neuron to another neuron.