BIOC32H3 Lecture Notes - Lecture 4: Referred Pain, Peripheral Nervous System, Cerebral Cortex
Document Summary
It is rather common for somatosensory and visceral nerve fibres to converge onto a single interneuron before entering the cns (in this case, the spinal cord) The sensory information from the skin and the visceral information from the heart converge onto the same interneuron before entering cns. => detection of chemicals: touch (obvious, audition (sound waves vibrate, push. Cerebrospinal fluid, making sure that ph is kept in narrow range where metabolism is possible: olfactory receptors, taste buds, temperature. Nociceptors: extremes of pain and temperature, cold receptors, warm receptors, thermal nociceptors (pain receptors responding to extreme temperatures) This is the exact image provided in the powerpoint. The table is summarized and colour-coded above, but this image is also provided should it be needed for reference purposes. A sensation based on the integration of various receptors is a compound sensation. Wetness is a combination of stimuli intergration (temp, mech)
