Which structures connect neurons, and which chemicals are primarily responsible for communication between neurons at these connections?

• A. Synapses; neurotransmitters
• B. Axons; hormones
• C. Dendrites; enzymes
• D. Myelin sheaths; antibodies

Answer: (A)

Verified step by step guidance

1. Step 1: Understand the basic structure of a neuron. Neurons are specialized cells in the nervous system that transmit signals. Key parts include the axon, dendrites, and cell body.
2. Step 2: Learn about synapses. Synapses are the junctions or connections between neurons where communication occurs. They can be chemical or electrical in nature.
3. Step 3: Explore the role of neurotransmitters. Neurotransmitters are chemical messengers released by neurons at synapses to transmit signals to other neurons, muscles, or glands.
4. Step 4: Eliminate incorrect options. For example, axons are structures that transmit signals away from the cell body, but they are not the primary site of communication. Hormones, enzymes, and antibodies are not directly involved in neuron-to-neuron communication at synapses.
5. Step 5: Conclude that synapses and neurotransmitters are the correct answer, as they are the structures and chemicals primarily responsible for communication between neurons.