A reflex action follows this general sequence and does not involve the conscious part of the brain. This is why the response is so fast. Receptor in the skin detects a stimulus (the change in ...

Neurotrophins can directly modulate the function of diverse types of central nervous system synapses. Brain-derived neurotrophic factor (BDNF) might be released by nociceptors onto spinal neurons and ...

Part of Biology (Single Science) The human body - Staying alive A reflex action follows this general sequence and does not involve the conscious part of the brain. This is why the response is so fast.