The Nervous System 0.0 / 5 ? PsychologyBiopsychologyA2/A-levelAQA Created by: longfootlivCreated on: 01-12-17 19:46 What is the nervous system? A specialised network of cells in the human body; our primary internal communication system. 1 of 11 Main functions of the nervous system? To collect, process, and respond to information in the environment and to coordinate the working of different organs and cells in the body. 2 of 11 What are it's 2 sub-systems? Central Nervous System and Peripheral Nervous System 3 of 11 What's the CNS made up of? The brain and spinal chord 4 of 11 What's the brain? Centre of all conscious awareness. Outer layer = cerebral cortex - highly developed in humans - higher mental functions 5 of 11 What's the spinal chord? An extension of the brain - responsible for reflex actions such as pulling your hand away from something hot 6 of 11 What's the autonomic nervous system? ANS Governs vital functions in the body such as breathing, heart rate and digestion 7 of 11 What's the somatic nervous system? SNS Controls muscle movement and receives information from sensory receptors. 8 of 11 Subdivisions of the ANS? Sympathetic state & parasympathetic state 9 of 11 What is the parasympathetic state? Rest & digest - controls the relaxed state, conserving resources and promoting digestion and metabolism. Opposes the sympathetic state. 10 of 11 What is the sympathetic state? Activates internal organs for emergencies eg. fight or flight response - increased heart rate, rapid breathing, decreased digestive activity. 11 of 11
Biopsychology-Influence of biological structures on behaviour- divisions of the nervous system 0.0 / 5
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