Q: What is the term used to describe the branched ends of axons?  

Answer: A

The branched ends of axons are called synaptic knobs, which are the points of contact between the axon of one neuron and the dendrites or cell body of another neuron. The synaptic knobs contain small sacs called synaptic vesicles that release neurotransmitters, which then travel across the synaptic cleft and bind to receptors on the postsynaptic membrane, transmitting signals between neurons. Dendrons, on the other hand, are not related to axons, but are short fibers that branch out from the cell body and receive information from other neurons. Synaptic vesicles are present within the synaptic knobs and contain neurotransmitters, which are released when an action potential reaches the terminal end of the axon. The release of these neurotransmitters triggers a response in the postsynaptic neuron, leading to the transmission of information between neurons.

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