Questions: cell in the nervous system that transmits information microglia axon astrocytes neuron oligodendrocytes

The answer is the fourth one: neuron.

Explanation for each option:

1. Microglia: These are a type of glial cell in the central nervous system that act as the main form of active immune defense. They are not primarily responsible for transmitting information.

2. Axon: This is a part of a neuron. It is a long, slender projection that conducts electrical impulses away from the neuron's cell body. While it plays a crucial role in transmitting information, it is not a cell itself.

3. Astrocytes: These are star-shaped glial cells in the brain and spinal cord. They perform various functions, including biochemical support of endothelial cells that form the blood-brain barrier, provision of nutrients to nervous tissue, and repair and scarring processes of the brain and spinal cord following traumatic injuries. They do not transmit information.

4. Neuron: This is the correct answer. Neurons are the primary cells in the nervous system responsible for transmitting information through electrical and chemical signals.

5. Oligodendrocytes: These are a type of glial cell in the central nervous system. Their main function is to provide support and insulation to axons by forming a myelin sheath. They do not transmit information themselves.

In summary, the neuron is the cell in the nervous system that transmits information.