Questions: Neurotransmitters are released from: axons. synaptic vesicles. dendrites. somas.

The answer is the second one: synaptic vesicles.

Explanation for each option:

1. Axons: While axons are the structures that carry nerve impulses away from the cell body, neurotransmitters are not directly released from the axons themselves. Instead, they are released from synaptic vesicles located at the axon terminals.

2. Synaptic vesicles: This is the correct answer. Synaptic vesicles are small membrane-bound structures within the axon terminals that store neurotransmitters. When an action potential reaches the axon terminal, it triggers the release of neurotransmitters from these vesicles into the synaptic cleft.

3. Dendrites: Dendrites are the structures that receive signals from other neurons. They do not release neurotransmitters; instead, they have receptors that bind to neurotransmitters released by other neurons.

4. Somas: The soma, or cell body, contains the nucleus and other organelles of the neuron. It is involved in the synthesis of neurotransmitters but does not release them. The release occurs at the axon terminals.

In summary, neurotransmitters are released from synaptic vesicles located at the axon terminals.