Neuroscience: Neuron Classifications

Questions and Answers

What is the structural classification of neurons?

What neuron looks like.

What is multipolar?

Bringing information towards the nervous system

Many processes off of the cell body; majority (correct)

One process coming off of cell body; then splits

One axon; one dendrite; found in special senses

What is bipolar?

Bringing information away from the nervous system

One process coming off of cell body; then splits

Many processes off of the cell body; majority

One axon; one dendrite; found in special senses (correct)

What is unipolar?

One process coming off of cell body; then splits Signup and view all the answers

What is the functional classification of neurons?

What neuron does. Signup and view all the answers

What are sensory neurons?

Bringing information towards the nervous system Signup and view all the answers

What are motor neurons?

Bringing information away from the nervous system Signup and view all the answers

What are interneurons?

Between sensory division and motor division; all in CNS Signup and view all the answers

Study Notes

Structural Classification of Neurons

Refers to the physical appearance of a neuron.
Three main types: multipolar, bipolar, and unipolar.

Multipolar Neurons

Characterized by multiple processes extending from the cell body.
Most common type of neuron in the nervous system.

Bipolar Neurons

Composed of one axon and one dendrite.
Primarily found in special sensory organs, such as the retina of the eye.

Unipolar Neurons

Have a single process that branches out from the cell body.
Commonly found in sensory neurons that transmit information to the CNS.

Functional Classification of Neurons

Focuses on the role of the neuron in the nervous system.
Main classifications include sensory, motor, and interneurons.

Sensory Neurons

Also known as afferent neurons.
Responsible for transmitting sensory information toward the central nervous system.

Motor Neurons

Referred to as efferent neurons.
Carry signals away from the central nervous system to execute actions based on sensory input.

Interneurons

Located between sensory and motor divisions.
Found exclusively in the central nervous system and make up about 99% of all neurons.

Description

Explore the structural and functional classifications of neurons through this informative quiz. Learn about multipolar, bipolar, and unipolar neurons, as well as sensory and motor neuron roles in the nervous system. Test your knowledge on the various types of neurons and their functions.