Many neurons of joints help to inform the brain about the activity of the joint, including pain or position of the joint. these types of neurons are classified as afferent neurons.
Afferent neurons are nerve fibers that are responsible for bringing sensory information from sensory receptors (like skin) into the central nervous system (brain and spinal cord). That's why it's also called the sensory neurons. Some examples of information that can be carried by afferent neurons are vision, smell, taste, pain, body position, force, self-movement, and temperature.
There are many types of afferent neurons, but the one that specifically informs joint activity and pain is the proprioceptors.
Learn more about neurons at https://brainly.com/question/11538106
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