| Name: | brain | 
|---|---|
| Synonyms: | brain structure | 
| Definition: | Cavitated compound organ which is comprised of gray and white matter and surrounds the cerebral ventricular system. | 
| Ontology: | Anatomy Ontology [ZFA:0000008] | 
| Name: | sensory perception of pain | 
|---|---|
| Synonyms: | nociception, perception of physiological pain | 
| Definition: | The series of events required for an organism to receive a painful stimulus, convert it to a molecular signal, and recognize and characterize the signal. A painful stimulus is any physical or chemical event that has the potential to cause tissue damage (actual or perceived) and activates the nociceptive system. | 
| Ontology: | GO: Biological Process [GO:0019233] QuickGO AmiGO |