Question

neurons are
part of the endocrine system.
cells that support glial cells.
cells that release neurotransmitters from their soma.
cells that form the nervous system.

Explanation:

• Option 1: Neurons are part of the nervous system, not the endocrine system (endocrine system uses glands/hormones). Eliminate.
• Option 2: Glial cells support neurons, not the other way around. Eliminate.
• Option 3: Neurons release neurotransmitters from axon terminals (not soma). Eliminate.
• Option 4: Neurons are the fundamental cells that make up the nervous system, responsible for transmitting signals. This is correct.

Answer:

cells that form the nervous system.