key term - Pain Receptors

Definition

Pain receptors, also known as nociceptors, are sensory receptors that detect and transmit signals related to tissue damage or potential injury to the brain. They play a crucial role in alerting us to harmful stimuli and promoting protective responses.

Related terms

Sensory Neurons: These are specialized nerve cells that transmit sensory information, including pain signals, from the periphery to the central nervous system.

Gate Control Theory:

This theory suggests that there is a "gate" in the spinal cord that can either allow or block pain signals from reaching the brain. It explains how factors such as distractions or rubbing an injured area can help alleviate pain sensations.

Hyperalgesia: Hyperalgesia refers to an increased sensitivity to painful stimuli. It can occur due to various factors such as inflammation or nerve damage.