PSYA01H3 Chapter 4: Chapter 4 - Biology of Behaviour
Document Summary
central nervous system (cns): brain and spine. transfer of chemical is the blood-brain bar rier (barrier between blood and brain produced by capillary cells that prevent some substances from entering the brain) cns consists of grey matter (parts of cns that are abundant in cell bodies of neurons rather than axons) and white matter (parts of cns that are abundant in axons rather than neurons)) brain has 3 functions: controlling behaviour, processing and retaining information, regulating processes, has 3 parts: brain stem: stem of brain that controls physiological functions and automatic behaviours, the 3 parts are: Medulla: closest to the spinal cord, controls vital functions such as heart rate and blood pressure. Organization of cerebral cortex: anterior: toward the front www. notesolution. com, posterior: toward the back, f rontal lobe: front portion of cerebral cortex, including broca"s speech area and motor cortex.
