Pseudounipolar neuron
Pseudounipolar Neuron
A Pseudounipolar neuron (pronunciation: soo-doh-yoo-ni-po-lar noo-ron) is a type of neuron that possesses a single, bifurcating axonal process emerging from the cell body. The term "pseudounipolar" is derived from the Greek words "pseudo," meaning false, and "unipolar," meaning having one pole or process.
Structure
The structure of a pseudounipolar neuron is unique in that it has a single process that extends from the cell body and then splits into two branches. One branch travels to the peripheral nervous system (PNS), while the other branch extends to the central nervous system (CNS). This structure allows the neuron to transmit sensory information from the PNS to the CNS.
Function
Pseudounipolar neurons primarily function as sensory neurons. They are responsible for transmitting sensory information from the body to the CNS. This information can include touch, temperature, pain, and proprioceptive signals.
Location
Pseudounipolar neurons are primarily found in the dorsal root ganglion of the spinal cord and the sensory ganglia of cranial nerves.
Related Terms
- Neuron: The basic working unit of the brain, a specialized cell designed to transmit information to other nerve cells, muscle, or gland cells.
- Peripheral nervous system: The part of the nervous system that consists of the nerves and ganglia outside of the brain and spinal cord.
- Central nervous system: The part of the nervous system that includes the brain and spinal cord.
- Dorsal root ganglion: A cluster of nerve cell bodies (a ganglion) in a dorsal root of a spinal nerve.
External links
- Medical encyclopedia article on Pseudounipolar neuron
- Wikipedia's article - Pseudounipolar neuron
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