Central nervous system pathways involved in pain perception

The term "central nervous system pathways involved in pain perception" encompasses multiple neural tracts within the brain and spinal cord that transmit, modulate, and perceive nociceptive (pain-related) signals. Key ascending pathways include the **spinothalamic tract**, **spinoreticular tract**, **spinohypothalamic tract**, and **trigeminothalamic tract**, which project to the thalamus, somatosensory cortex, and limbic structures. Descending pathways such as those from the **periaqueductal gray (PAG)** and **rostral ventromedial medulla (RVM)** modulate incoming pain signals by inhibitory and excitatory influences at the spinal dorsal horn. These CNS circuits involve interactions between various neurons and neurotransmitter systems, integrating sensory, emotional, and cognitive aspects of pain experience[1][2][3][4]. This phrase does not represent a molecular drug target (e.g., a receptor, transporter, or enzyme) but rather a complex network of anatomical structures and functional circuits, making it unsuitable for structured drug discovery or pharmacological target information.

Other names

pain pathwaysCNS pain pathwayscentral pain pathwaysascending pain pathwaysdescending pain pathways